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The Mercedes-Benz SLS AMG is now even more attractive and individual. The new high-tech option of the AMG RIDE CONTROL sport suspension with adaptive damping combines concerted performance-orientation with optimal comfort on long journeys. Blind Spot Assist improves active safety on board the gull-wing model. Further optional features such as AMG 10-spoke forged wheels painted in matt black, red-painted brake callipers or AMG high-gloss black trim make for even more exclusivity.
A glance at the centre console of the SLS AMG not only reveals the stylishly designed, new E-SELECT lever with its embossed AMG emblem, but also a new shock absorber symbol in the AMG DRIVE UNIT. This key symbolises the new AMG RIDE CONTROL sport suspension with variable, electronically controlled damping. Depending on the driving situation, speed and road surface conditions, this optional system almost instantly varies the damping characteristics and automatically reduces the body roll angles. For the driver this means immediate and variable adaptation between the greatest possible agility and the best possible ride comfort – for any driving style and route.
Maximum individuality: "Comfort", "Sport" and "Sport plus"
A small key with a major effect: pressing the shock absorber symbol allows individual, convenient adjustment of the damping characteristics. There is a choice of three modes: "Comfort", "Sport" and "Sport plus". The currently selected mode is shown in the AMG main menu.
"Comfort" is automatically active whenever the engine is started, and provides a sensitive damper responce with comfort-oriented characteristics. "Comfort" is recommended for cruising at moderate speeds – e.g. in urban traffic or on motorway sections with speed restrictions. But even on poor, bumpy road surfaces, "Comfort" mode will be the first choice of many SLS AMG drivers by virtue of the softer damper setup.
To select "Sport" mode the key in the AMG DRIVE UNIT is pressed once. The left control lamp in the key and the AMG main menu display tell the driver that "Sport" mode has been manually activated. In "Sport" mode the shock absorbers have a tauter response depending on the driving situation, which not only ensures better road contact when driving in a sporty manner, but also more effectively reduces body roll and pitching. In most driving situations, "Sport" mode provides the best compromise between satisfactory suspension comfort, low body movements and high agility.
"Sport plus" is recommended for fast lap times on a race circuit: apart from higher damping forces, this mode has special control algorithms configured for a decidedly sporty driving style on uneven road surfaces. The driver is able to store his personal setup using the AMG key in the AMG DRIVE UNIT. Sustained pressure on the AMG symbol stores the currently selected suspension mode and also the selected transmission mode. As before, the driver has four different transmission modes available: fuel economy mode "C" (Controlled Efficiency), "S" (Sport), "S+" (Sport plus) and "M" (Manual). Brief pressure on the AMG key quickly and conveniently activates the preferred combination.
With immediate effect, the new AMG RIDE CONTROL sport suspension is available on request for the SLS AMG Coupé and Roadster. Alternatively the gull-wing model is available with the basic AMG suspension or the AMG Performance suspension, both without variable damping characteristics.
Numerous parameters monitored by electronics
The electronic damper control is based on acceleration sensors which register dynamic vehicle body and wheel movements, both absolutely and in relation to each other. Other factors relevant to the driving dynamics, such as drive and braking moments, the steering angle and lateral/linear acceleration are continuously registered and evaluated. The current vehicle speed, wheel rotation speeds and selected gear ratios are also continuously analysed. High-performance control electronics in permanent dialogue with the engine and transmission control unit ensure that the forces of the four newly developed shock absorbers are adapted practically instantly.
Depending on the selected suspension mode, different control configurations and parameter weightings are active to strike the best possible balance between comfort and dynamic performance. Electromagnetically actuated valves in the shock absorbers control the oil flow between the lower and upper chamber. In "Comfort" mode more oil flows through the valves, and less in "Sport" and "Sport plus" mode.
Double wishbone suspension of forged aluminium
All four wheels are located on double wishbones with a track rod, a technology that has proven itself in motor racing right through to Formula 1. With a double-wishbone axle, the wheel location and suspension functions remain separate; the spring/damper struts are supported on the lower wishbone. The double-wishbone concept with its high camber and track rigidity positively locates the wheel with minimal elastic movements, providing the driver with an optimum sense of road contact when driving at the limits.
Wishbones, steering knuckles and hub carriers at the front and rear are made entirely from forged aluminium – substantially reducing the unsprung masses; this configuration also notably improves the suspension response. The long wheelbase of 2680 millimetres not only results in outstanding straight-line stability but also low wheel load shifts, significantly reducing the vehicle's tendency to dive and squat when braking and accelerating. The broad track width – front 1682, rear 1653 millimetres – ensures lower shifts in the wheel loads from the inner to the outer wheel when cornering, enabling the tyres to retain more grip.
The chosen solution with a front-mid-engine plus transaxle configuration ensures an ideal front/rear weight distribution of 47 to 53 percent. Mounting the engine behind the front axle has created the ideal conditions for consummate driving dynamics with precise steering, first-class agility, low inertia with spontaneous directional changes and outstanding traction.
Direct steering, differential lock and 3-stage ESP®
The rack-and-pinion steering gear provides a consistently direct steering feel with a constant mechanical ratio of 13.6:1, in tune with the high expectations placed on a super sports car. The power steering provides speed-sensitive assistance and improves feedback for the driver as the road speed increases: an indispensable factor for high-speed straight-line driving. Mounting the steering gear in front of the engine on the integral subframe enables the engine to be set down very low. The SLS AMG comes with 3-stage ESP® as standard, providing the driver with access to the three "ESP ON", "SPORT Handling mode" and "ESP OFF" modes at the touch of a button. In "ESP OFF" mode too, vigorously operating the brake pedal restores all the normal ESP® functions.
The acceleration skid control (ASR) system's traction logic is active in all three ESP® modes. If one of the drive wheels starts to spin, specific brake pressure is applied to improve traction significantly – especially in conjunction with the standard-fit mechanical multi-disc limited-slip differential. This means that the engine power is transferred to the road even more effectively when driving in a particularly dynamic style.
Blind Spot Assist increases active safety
The new, optionally available Blind Spot Assist is able to increase active safety. This visual and acoustic warning system uses the close-range radar sensors of the standard PARKTRONIC system to recognise vehicles in good time where visibility is restricted. When the system registers another vehicle in the blind spot, this is indicated to the driver by a red triangle lighting up in the relevant exterior mirror. An acoustic warning also sounds if the driver operates the indicators despite the visual warning.
Blind Spot Assist is operational from a speed of 30 km/h. It monitors the area around the vehicle to a distance of around 3.5 metres on each side and three metres beyond the rear. Vehicles in the process of overtaking are shown immediately when they enter the monitored area of the difference in relative speeds between the two vehicles is not more than 16 km/h. Vehicles that have just been overtaken are however shown with a delay of 1.5 seconds after entering the monitored area, thus preventing distraction by unnecessary warnings.
New optional appointments for more style and design
Available as an optional extra, the car's visual appearance is enhanced by weight-optimised AMG 10-spoke forged wheels shod with tyres in size 265/35 R 19 (front) and 295/30 R 20 (rear). Their matt black paint finish corresponds perfectly with the high-sheen rim flange. Optional red-painted brake callipers all-round provide a further visual highlight.
Single-tone or two-tone designo leather in espresso brown is available as a new interior colour – this dark shade of brown perfectly matches the new metallic paint finish AMG Sepang brown. New AMG high-gloss black trim (optional) is an exclusive alternative to the standard centre conslole in solid metal or the optional carbon-fibre trim.
All prices for the new features at a glance (incl. 19 % VAT):
- AMG RIDE CONTROL sport suspension with adaptive damping: € 2320.50
- AMG 10-spoke forged wheels with matt black paint finish and high-sheen rim flange: € 3272.50
- Red-painted brake callipers: € 714.20
- Blind Spot Assist: € 773.50
- AMG Sepang brown metallic: € 2439.50
- AMG high-gloss black trim: € 2320
* Official photos and details courtesy of Mercedes-AMG GmbH *
Copyright © 2011, Mercedes-Benz-Blog. All rights reserved.
AMG fans had the chance to drive the SLS AMG GT3 for the first time. The AMG Driving Academy is exclusively using SLS AMG GT3 vehicles at the most demanding MASTERS skill level. With these unique events, the AMG Driving Academy – which was started successfully in 2007 – is offering participants an opportunity to experience motor racing first hand whilst benefitting from what is an unprecedented high standard of safety. The new SLS AMG GT3 MASTERS is a preliminary highlight of the AMG Driving Academy, which is continually extending its programme to provide an extremely wide variety of events.
The module-based SLS AMG GT3 MASTERS programme consists of four stages: EXPERIENCE, WARM-UP, TRAINING and COMPETITION. During the three-hour EXPERIENCE stage, participants start off with the road version of the SLS AMG to benefit from some driving guidance. After an introduction and a seated "rehearsal", they take to the wheel of the SLS AMG GT3 for themselves, and are again guided safely around the race track by a lead vehicle. Participants then step into the passenger seat of an SLS AMG GT3 racing taxi driven by an experienced professional racing driver to enjoy a few quick laps around the circuit.
During the second stage – WARM-UP – the participants are given a detailed theory-based introduction to the technology and controls of the SLS AMG GT3. After a fitness check, during the subsequent training session the participants are able to familiarise themselves fully with the racing version of the gull-wing model: the programme covers such aspects as acceleration, braking, changing gear, overtaking and also a variety of other handling exercises, all carried out on sports tyres. Plus, participants who are resident in Germany also have the chance to acquire a national DMSB (German Motor Sport Federation) driver's licence.
COMPETITION forms the highlight of the SLS AMG GT3 MASTERS
In stage three – TRAINING – the SLS AMG GT3 vehicles are initially driven on sports tyres, after which they are switched over to slick tyres. The participants train with an experienced personal trainer, who they can book on an hourly basis. The focus lies squarely on the systematic enhancement of skills such as cornering techniques, perfect braking, acceleration and changing gear. Professional data and video recordings are also used for consistent improvement of race track driving technique. The highlight of the SLS AMG GT3 MASTERS is the COMPETITION stage, which is expected to start at the end of 2012: after a training session which is specific to the race circuit being used, the participants will complete initial assessment tests, followed by individual and team competitions.
Participants can take part in all MASTERS events using either the SLS AMG GT3 vehicles which are made available or driving their own vehicles. All drivers also benefit from sports medicine input. And while there are no particular requirements for taking part in the EXPERIENCE stage, when it comes to the WARM-UP, TRAINING and COMPETITION stages, participants have to complete appropriate race track training sessions. Prices for SLS AMG GT3 MASTERS events start at 1500 euros. Each event can be booked separately. The next opportunity to enjoy a unique GT3 experience with AMG is 17/18 September on the track in Groß-Dölln.
Exemplary level of safety thanks to a carbon-fibre safety cell
The racing version of the gull-wing was conceived as a customer sports car for sprints and long-distance racing according to the near-series FIA GT3 rulebook. In a set-up similar to that of the Mercedes-Benz DTM cars, the seat shell of the SLS AMG GT3 is located in a high-strength carbon-fibre (CFRP) safety cell. Thanks to its special shape, the safety cell, which is bolted to the rollover cage and the aluminium spaceframe, offers far greater protection for the driver's shoulders, hips and legs. The seat shell also features the HANS (Head and Neck Support) system, is individually foam-padded and equipped with a six-point seat belt, thus maximising occupant safety. Additional safety is provided by the steel rollover cage, which also gives further reinforcement to the aluminium spaceframe.
Tailor-made programme to meet all requirements
The AMG Driving Academy programme offers a wide selection of events which allow ambitious sports car enthusiasts to improve their car control and further enhance their driving safety. Founded by Mercedes-AMG in 2007, the AMG Driving Academy comprises five different programmes: EMOTION, BASIC, ADVANCED, PRO and MASTERS. These offer everything from lifestyle-oriented events and courses which take the participants through their first experience of driving at the limit, all the way through to intensive race circuit training with a competitive edge. The level of difficulty is tailored to the participants' individual requirements. Prices for the AMG Driving Academy programmes start from as little as 370 euros.
New lifestyle events in 2011 include the EMOTION Tour Wine & Dine, EMOTION Tour Golf, EMOTION Tour Montreux and EMOTION Tour DTM Show Event Munich, all of which focus on enjoyment and community spirit.
The AMG Driving Academy adopts a strategy of expansion
The AMG Driving Academy training courses not only take place on the legendary racing circuits of Europe, such as the North Loop of the Nürburgring, the Hockenheimring in Baden-Württemberg or the Grand Prix circuit at Spa-Francorchamps in Belgium. This year, the Red Bull Ring in Spielberg (Austria), newly opened in 2011, will also play host to the AMG Driving Academy. Special events for AMG fans from the USA and China will also be held at such racing circuits as the Laguna Seca Raceway (California), Road Atlanta Racetrack (Georgia), Lime Rock Park (Connecticut), the Shanghai International Circuit and the Zhuhai International Circuit. Due to increasing demand, AMG is also preparing tailor-made events for Japan and Canada too.
Enjoy driving pleasure on the frozen lakes of Swedish Lapland
A particularly appealing training event takes place from January to March each year in Arjeplog (Sweden), not far from the Arctic Circle: the AMG Winter Sporting ADVANCED and PRO event. Participants drive the AMG high-performance cars provided exclusively on a closed-off ice surface, and the Electronic Stability Program ESP® is generally disabled. Specially developed training programmes guarantee an optimum combination of training success and driving pleasure. All the cars are fitted with special spike tyres, which ensure a precisely defined level of grip. A wide-ranging support programme for the event characterised by a typical local atmosphere rounds off the four and five-day events in Swedish Lapland. Also included is a drive or ride in the AMG Ice Taxi, a specially prepared AMG car fitted with the special spike tyres used by FIA WRC rally cars.
Since the beginning of 2009 participants in the AMG Winter Sporting event have been able to enjoy the facilities of the newly-built AMG Lodge which nestles in the breathtaking landscape of Swedish Lapland. The AMG-owned hotel on Mount Galtis near Arjeplog provides a fabulous view over the forests and lakes of the region. The exclusive rooms, excellent restaurant and large spa area including whirlpool and fitness studio help to ensure a pleasant stay.
Prominent instructors experienced in the world of motorsport
Licensed trainers with extensive racing experience pass on their vast knowledge with great professionalism. The AMG Driving Academy's 23-man team, lead by Chief Instructor Reinhold Renger, includes some prominent names such as Susie Stoddart (28, GB, DTM driver for Mercedes-Benz), Bernd Schneider (47, five-time DTM champion), Bernd Mayländer (40, driver of the Official F1™ Safety Car) and Thomas Jäger (34, coordinator for AMG Customer Sport). All of the instructors of the AMG Driving Academy have extensive experience in motorsport, significant technical know-how and excellent teaching skills.
AMG high-performance cars double up as cars for hire
Depending on the type of event, the participants drive either their own AMG cars or AMG high-performance models laid on by the AMG Driving Academy – such as the SLS AMG or the new CLS 63 AMG. Alternatively AMG hire cars are also available for a select number of events.
Standard features of all AMG events, meanwhile, are top-class hospitality – including culinary specialities, as well as accommodation in high-class hotels. The AMG Driving Academy also arranges complete incentive packages for companies, customers and business partners. These may take the form of lifestyle-oriented events along the lines of an EMOTION tour or intensive race circuit training.
AMG and social networking
Via the AMG Driving Academy's Facebook, Flickr and YouTube pages, customers and fans can keep up to date with all activities, exciting event reports and glimpses behind the scenes included. It is also possible to stay in touch with like-minded people and with Mercedes-AMG GmbH. One highly exclusive way of sharing your passion for the brand with other AMG enthusiasts is the AMG Private Lounge. This official online forum enables owners of an AMG-Mercedes to exchange their insider knowledge with others and to maintain direct contact with Mercedes-AMG.
* Official photos and details courtesy of Mercedes-AMG GmbH *
Copyright © 2011, Mercedes-Benz-Blog. All rights reserved.
On 30 July 2011 the customer team Black Falcon will be at the starting line of the 24-hour race in Spa-Francorchamps (Belgium) with the Mercedes-Benz SLS AMG GT3. The gull-wing with start number 35 has been given the same look as the Mercedes-Benz 300 SEL 6.8 AMG with which Hans Heyer and Clemens Schickentanz achieved a class victory and overall second place 40 years ago. Among the drivers of the SLS AMG GT3 will be Kenneth Heyer, Hans Heyer's son. A total of seven gull-wings will compete in this classic Belgian long-distance race.
The 40th anniversary on the occasion of the 63rd 24-hour race in Spa-Francorchamps celebrates the astonishing success achieved in 1971, when the Mercedes-Benz 300 SEL 6.8 AMG won a class victory and second place in the overall ranking on its first outing. The SLS AMG GT3 is being entered by the private team Black Falcon, and is visually reminiscent of the legendary racing touring car that made AMG world-famous overnight. The red paint finish, the start number 35 and the sponsor stickers keep the memory alive, and almost give the two AMG racing cars the appearance of twins.
During the 24-hour race this very special gull-wing car will be driven by Kenneth Heyer (31, Wegberg), Thomas Jäger (34, Munich) and Stéphane Lémeret (37, Ophain-Bois-Seigneur-Isaac, Belgium). Kenneth Heyer has been an active racing driver since 2000, and on this 40th anniversary he is following in the footsteps of his father Hans Heyer, who achieved the sensational 1971 success for AMG with his team colleague Clemens Schickentanz on the same racetrack.
Kenneth Heyer: "It's a great honour, exactly 40 years after my father's success, for me to be bringing the Black Falcon SLS AMG GT3 to the starting line of the 24-hour race in Spa-Francorchamps. Together with my team colleagues, I will be trying to achieve at least second place. The car will no doubt attract plenty of attention in the line-up with its look reminiscent of the legendary Mercedes-Benz 300 SEL 6.8 AMG, but naturally the focus will be on a good racing performance. The SLS AMG GT3 has the potential for a place on the winner's rostrum, but as we all know, a 24-hour race obeys laws of its own."
Hans Heyer: "40 years after our class victory and second overall place, I think it is a great idea to enter the Spa-Francorchamps race with the SLS AMG GT3 in the same look as "my" 300 SEL 6.8 AMG. Naturally I wish the Black Falcon team and my son Kenneth every success – and will be delighted if he wins at least second place!"
Ola Källenius, Chairman of Mercedes-AMG GmbH: "This project of entering an SLS AMG GT3 in the 24-hour race in Spa-Francorchamps with the same look as the Mercedes-Benz 300 SEL 6.8 AMG of 1971 deserves a round of applause. I wish Kenneth Heyer, his team colleagues and the Black Falcon customer team every success. Naturally we at Mercedes-AMG also have our fingers firmly crossed for the other private teams who are competing in the race with the SLS AMG GT3. The customer sport programme for the gull-wing, which commenced in 2010, has made a good start, and the SLS AMG GT3 has immediately shown itself to be a racing car with great potential. To date we have sold 35 examples to private teams all over the world."
Hans Werner Aufrecht, founder of AMG and Chairman of the Supervisory Board at HWA AG: "For me this project is an outstanding example of how passionate commitment to motorsports can manifest itself. It is also impressive to see how AMG has developed 40 years after our second place in the 24-hour race in Spa-Francorchamps in 1971. I have my fingers crossed for Kenneth Heyer, and of course also the other teams who will at the starting line with the SLS AMG GT3."
In addition to Black Falcon with start number 35, six more SLS AMG GT3s will be competing in Spa-Francorchamps. The teams and drivers are as follows:
- Koen Wauters (B)/Anthony Kumpen (B)/Mike Hezemans (NL), start number 15, KRK Racing Team Holland (Belgium). The driver duo Kumpen/Hezemans won the 24-hour race in 2009.
- Raf Vanthoor (B)/Marius Ritskes (NL)/Bernhard Van Oranje (NL)/Dennis Retra (NL), start number 16, KRK-Racing Team Holland (Belgium)
- Kenneth Heyer (D)/Thomas Jäger (D)/Stéphane Lémeret (B), start number 35, Black Falcon (Germany)
- David Jones (GB)/Godfrey Jones (GB)/Mike Jordan (GB), start number 90, Preci Spark team (Great Britain)
- Andrii Lebed (UA)/Bret Curtis (USA)/Peter van de Kolk (NL)/Jeroen van de Heuvel (NL), start number 46, Black Falcon (Germany)
- Olivier Panis (F)/Nicolas Lapierre (F)/Eric Debard (F)/Grégoire Demoustier (F), start number 54, Graff Racing (France)
- Philippe Haezebrouck (F)/Massimo Vignali (I)/Gilles Vannelet (F)/Mike Parisy (F), start number 55, Graff Racing (France)
The 24-hour race in Spa-Francorchamps is one of the classic events in the international long-distance racing calendar. The race was first held in 1924, and until 1978 the 14.8-kilometre course was used. Since 1979 the race has been held on the shorter, 7.0-kilometre course. This tradition-laden circuit in the Belgian Ardennes is the favourite racetrack of many drivers. 70 cars have been entered in this year's 24-hour race, which comes under the FIA's GT3 and GT4 rules. 250 drivers will be competing. The race starts at 4 p.m. on 30 July 2011.
More information at: www.total24hours.com .
Further information about the Mercedes-Benz SLS AMG GT3 is available at: www.mercedes-amg.com/slsgt3 .
Three show cars commemorate the historic 1971 success
AMG will commemorate the 1971 success with three show cars in the driver's paddock in Spa-Francorchamps: the 300 SEL 6.8 AMG, the SLS AMG GT3 and, as an attraction, also the S 63 AMG "Thirty Five". Right down to details, this high-performance saloon is modelled on the historic racing touring car of 1971, but under the bonnet is the AMG 5.5-litre V8 biturbo with direct petrol injection, spray-guided combustion and piezo injectors, which was introduced in 2010. In standard configuration in the S 63 AMG, this AMG powerpack develops up to 420 kW (571 hp) and is regarded as the most efficient engine in its segment.
Historic second place for AMG in 1971
In 1971 the 24-hour race in Spa-Francorchamps was the first race that AMG, founded in 1967, had ever entered. Alternating behind the wheel of the AMG touring car were the two experienced drivers Hans Heyer and Clemens Schickentanz. AMG was anything but the favourite in this classic Belgian long-distance race: mighty opponents at the time included the Ford Capri RS, BMW 2800 CS, Chevrolet Camaro, Opel Commodore and Alfa Romeo GTA. Nobody expected the large saloon from provincial Affalterbach in Swabia to hold its own against the well-established teams.
Surprising 5th place in the starting lineup for AMG
However, the red four-door saloon already demonstrated its potential in training, when Clemens Schickentanz delivered a surprise with the fifth-fastest training time. Nobody at AMG had expected 5th starting position in a field of 60 cars. 80,000 spectators were intrigued by the fast, red saloon with the long wheelbase – which was incidentally also the only Mercedes in the race. Pole position was occupied by the favourite, the Chevrolet Camaro driven by Ivo Grauls and Peter Hoffmann, followed by the Alpina-BMW 2800 CS of Niki Lauda/Gérard Larousse and next to it the first works Ford Capri with Dieter Glemser and Alex Soler-Roig plus the Schnitzer-BMW 2800 CS driven by Rauno Aaltonen and Helmut Kelleners. A total of 60 racing touring cars raced against the stopwatch on the then still 14.1-kilometre long course in the Ardennes, with illustrious names such as Hans-Joachim-Stuck, Jochen Mass, Toine Hezemans, Willy Kauhsen, Achim Warmbold and Rainer Braun behind the wheel.
On the first lap Hans Heyer, who was first to take the wheel of the 300 SEL 6.8 AMG, was able to position himself in third place right behind the Ford Capri (Glemser/Soler-Roig) and the Chevrolet Camaro (Grauls/Hoffmann). After a dramatic race which included a sudden rainstorm at midnight and numerous contestants withdrawing, the "35" crossed the finishing line in second place directly behind the works Capri driven by Glemser/Soler-Roig. In 24 hours the AMG saloon had absolved precisely 308 laps. Technical problems? None whatsoever. An absolute sensation.
Contrasts: 265 km/h and exotic wood trim in the cockpit
Hans Heyer has fond memories of this race: "We knew we could win, but the others didn't know it yet!" The AMG saloon was unbeatable on the straight, but the braking system substantially adopted from the series production car was slightly underpowered for the weight of the car (1635 kilograms). "But on the old Spa course the brake discs had plenty of time to cool down, and nobody could catch us on the long straights," the now 68 year-old reminisces. With a top speed of 265 km/h the 300 SEL 6.8 AMG was tailor-made for the fast Belgian circuit. The atmosphere in the interior was luxurious, with standard features such a power steering, air suspension, carpets, door panelling and a dashboard with exotic wood trim. The spectators lining the track loved this large car with its thrilling V8 sound. "The outsider quickly became the absolute darling of the public," says Hans Heyer.
Luxury: the Mercedes-Benz 300 SEL 6.3 as the basis for a racing car
The AMG racing saloon was technically based on the Mercedes-Benz 300 SEL 6.3. With an output of 184 kW (250 hp) at 4000 rpm and a top speed of 220 km/h, this saloon was Germany's fastest series-production car in its day. It was not only an increase in the overall displacement from 6330 to 6835 cc that raised the output to 315 kW (428 hp) at 5500 rpm and torque from 500 to 608 newton metres. AMG co-founder Erhard Melcher "tweaked" the eight-cylinder engine using classic methods: Precision-honed camshafts and modified rocker arms, lightweight connecting rods, new Mahle pistons, larger intake valves, modified combustion chambers, polished intake and exhaust ducts, a new intake tract with two throttle flaps and a racing exhaust system ensured an improved gasflow and allowed higher engine speeds. Durability was improved by installing an auxiliary oil cooler and a finely balanced crankshaft.
The wheel arches were flared to make room for the lightweight 10 x 15 and 12 x 15-inch magnesium wheels adopted from a C 111 test car. Aluminium doors helped to reduce weight from the original 1830 to 1635 kilograms. Larger control arms at the front axle, a more robust rear axle with a reinforced differential and smaller air suspension bellows with a harder setup made the saloon fit for the racetrack.
German TV news reports on the sensational achievement
The unexpected class victory and second overall place in the 24-hour race in Spa-Francorchamps made AMG, founded in 1967, a household name overnight – and marked the start of an impressive success story. Even the German television news reported on this surprise achievement. "It was certainly a sensation at the time," AMG founder Hans Werner Aufrecht remembers. The courage shown by Aufrecht and his partner Melcher in entering a modified luxury saloon for this classic 24-hour race paid off in full.
On 11 and 12 September 1971 the 300 SEL 6.8 AMG subsequently competed in the 2x6-hour Paul Ricard race, accompanied by a privately entered 300 SEL 6.3 with an AMG engine. Now repainted in yellow, the 300 SEL 6.8 AMG took part in the pre-trials for the Le Mans 24-hour race in March 1972, but was not at the starting line for the race itself in June. However it competed in the 24-hour race in Nürburgring in June 1972, and in the Nuremberg 200-mile race held at Norisring on 6 August 1972. Here Hans Heyer achieved victory with the four-door saloon – once again painted red - in the "Series and special touring cars above 2000 cc" class.
The 300 SEL 6.8 AMG was not to enjoy any further successes: a change in the race rules by the Fédération Internationale de l’Automobile (FIA) put an end to its career, as only cars with an overall displacement of up to five litres were now allowed for the European Touring Car Trophy. AMG sold its racing saloon to the French conglomerate Matra, where it was converted for high-speed tests on aircraft tyres. Its subsequent fate is unknown. In spring 2006 Mercedes-AMG built a replica of the 300 SEL 6.8 AMG based on the original documentation, so that this unique success story would live on.
* Official photos and details courtesy of Mercedes-AMG GmbH *
Copyright © 2011, Mercedes-Benz-Blog. All rights reserved.
Following the official preview earlier this month, Mercedes-Benz will release the first images and details of the new SLS AMG Roadster this week-end, on 29th May. As widely known, the world premiere of the open-top model is scheduled to take place in September, on the stage of the IAA Frankfurt 2011.
Source: Mercedes-Benz Passion Blog
Copyright © 2011, Mercedes-Benz-Blog. All rights reserved.
