The new Mercedes-Benz SLR McLaren Roadster 722 S opens up astonishing dimensions when it comes to open-top driving. Delivering 478 kW/650 hp, acceleration from 0 to 100 km/h in 3.7 seconds and a maximum speed of 335 km/h, this two-seater cabriolet surpasses the existing benchmark among open-top super sports cars – the SLR McLaren Roadster. Both vehicles feature a fully retractable folding soft top capable of withstanding the high speed and are made of carbon fibre. This endows both models with a very high degree of safety and extreme torsional stiffness. In addition to increased power, the new SLR McLaren Roadster 722 S features even more dynamic suspension tuning and improved aerodynamics. While enjoying exceptional performance, the new roadster’s occupants in no way lose out in terms of comfort or the vehicle’s suitability for everyday use. With its sporty, premium-quality interior appointments and distinctive motorsport pedigree, the new SLR McLaren Roadster 722 S is limited to 150 vehicles and will inspire the most discerning automotive enthusiasts.
Spectacular dimensions in open-top driving are opened up by the new Mercedes-Benz SLRMcLaren Roadster 722 S. With an output of 478 kW/650 hp, acceleration from 0 to 100 km/h in 3.7 seconds and a top speed of 335 km/h, this open two-seater betters the standard set for open-air super-sports cars by the SLR McLaren Roadster. Both have a fully recessible soft top suitable for high speed driving, and are made from carbon fibre. This produces a very high level of safety and extremely high torsional strength. In addition to a higher engine output, the new SLR McLaren Roadster 722 S has an even more dynamic suspension setup and further aerodynamic improvements.
By naming this new model variant the SLRRoadster 722 S, Mercedes-Benz
is recalling the historic victory won at the classic Mille Miglia long-distance race in 1955 by British motor-racing legend Stirling Moss and his co-driver Dennis Jenkinson, in a Mercedes-Benz 300 SLR with the starting number 722. The Mercedes-Benz SLR McLaren Roadster 722 S continues the legend of the successful 1950s SLR racing sports cars, with innovative technology adopted from the world of motorsport.
Engine hand-built by AMG
The powerful heart of the SLR Roadster 722 S is a supercharged 5.5-litre V8 engine which is hand-built in the Mercedes-AMG engine shop in Affalterbach. The special strengths of this high-performance engine include extraordinary responsiveness to movements of the accelerator, a high torque and an unmistakable V8 sound. Moreover, with an output of 478 kW/650 hp and 820 Nm of torque, power is on tap almost to excess (SLR McLaren Roadster: 460 kW/626 hp, 780 Nm). Accordingly the new model variant meets the wishes of the most discerning customers for even more sportiness combined with excellent day-to-day practicality.
The five-speed automatic transmission developed by Mercedes-Benz is designed for high performance. It is specially configured for a very high torque, and allows the driver to choose between two sets of shift characteristics. As a result the roadster achieves performance figures that are even outstanding for the high-end sports car segment: the SLR Roadster 722 S absolves a sprint from zero to 100 km/h in a breathtaking 3.7 seconds, and 200 km/h is reached in 10.6 seconds. The maximum speed is 335 km/h, which is unrivalled by any other series-production roadster.
Even more dynamic suspension setup
The spring and shock absorber configurations of the suspension are stiffer, and the body has been lowered by 10 millimetres at the front and rear. This ensures the greater handling stability of the Mercedes-Benz SLR McLaren Roadster 722 S, with a significant improvement in handling dynamics. The lightweight, 19-inch forged aluminium wheels allow a view of the red-painted brake callipers on the highly-resistant carbon-fibre/ceramic brake discs, which make for impressive deceleration figures.
Sophisticated aerodynamics and a fabric soft top suited to high-speed driving
The outstanding qualities of the 722 S are complemented by the fully recessible fabric soft top, which blends harmoniously into the flowing lines of the roadster. The weave structure of this high-tech roof material reflects the carbon-fibre look, guarantees full day-to-day suitability in any weather conditions and allows the vehicle a top speed of 335 km/h – a unusual figure for a roadster. Thanks to favourable aeroacoustics, conversation during open-air journeys is still possible at well over 200 km/h.
The soft top opens and closes semi-automatically in around ten seconds, combining comfort expectations with the purist nature of the roadster. For opening, the roof needs to be unlatched at the windscreen frame and lifted slightly, after which it folds down electrically. The front section of the soft top features an integral aluminium cap, which effectively prevents “ballooning” at high speeds.
The handling and aerodynamics of this high-end roadster were optimised for high speeds in the wind tunnel. The aerodynamic concept follows that of the SLR Coupé, with an airbrake integrated into the boot lid, an enclosed underbody and a diffusor in the rear bumper to ensure the greatest possible downforce on the rear axle. The so-called airsplitter at the front end augments this downforce, while small wheel spoilers reduce turbulence at the rear axle. The result is precise handling and steering at high speeds.
Outstanding performance and safety thanks to carbon fibre technology
In technical terms the 722 S benefits from the long experience of Mercedes-Benz and its Formula-1 partner McLaren. With the exception of two aluminium frames, the body is completely of carbon-fibre materials (CFRP). This makes it highly exceptional among high-performance sports cars. Especially for the roadster, the sophisticated carbon-fibre technology was developed further for the monocoque. The result is low weight, exemplary energy absorption and therefore a high level of occupant safety, plus a torsional rigidity that is unprecedented for an open-top car. It allows outstanding handling characteristics that are otherwise only found in closed super-sports cars.
A high level of safety is provided by unique carbon-fibre crash structures, steel-reinforced A-pillars and two fixed rollover bars. Other safety features include adaptive airbags, knee and sidebags, belt tensioners and a tyre pressure monitoring system.
A thoroughly sporty appearance
The roadster has a crystal antimony grey paint finish, which highlights the sculptured look of this high-performance car particularly effectively. The carbon-fibre technology is visually complemented by the black, grid-like air vents on the bonnet and the front and rear light modules with palladium grey surrounds.
In the interior, outstanding lateral support is guaranteed by sports bucket seats upholstered in a combination of semi-aniline leather/Alcantara. Striking visual highlights are provided by the contrasting seams in 300 SL red, the embossed 722 S lettering on the head restraints and the likewise red seat belts. Frequently used controls such as the shift and parking brake levers are lined in particularly high-grip and moisture-absorbing suede leather. In the interior too, the generous use of carbon-fibre underlines the high-performance philosophy and adds a particularly puristic touch.
Exclusive appointments
The exclusive appointments include two-zone automatic climate control, a high-quality BOSE Premium sound system, a multifunction sports steering wheel with shift paddles and a navigation system with an integrated radio and CD player.
This limited edition of 150 examples is predominantly hand-built at the Formula 1 workshops of McLaren in Woking, England, and is available from January 1, 2009.
Vodafone McLaren Mercedes driver Lewis Hamilton finished the inaugural Singapore Grand Prix, the first night race in Formula 1 history, in third place. After 61 eventful laps (309.087km) with two Safety Car periods, Lewis came home 5.9sec behind winner Fernando Alonso (Renault). Heikki Kovalainen ended up 10th. After 15 out of 18 races, Vodafone McLaren Mercedes took the lead in the Constructors’ Championship with 135 points ahead of Ferrari with 134 points. Lewis extended his lead in the drivers’ ranking to 84 points ahead of Felipe Massa (77 points) who did not score today. Heikki is sixth with 51 points.
The start: Lewis was second on the grid and second after the opening lap. Heikki had qualified fifth and attacked Robert Kubica (BMW Sauber) at the first corner, but he was touched by Kubica at the second corner and lost two positions; he was seventh after lap one.
The race, lap 10: Lewis was second with 3.3sec behind Massa; Heikki followed in seventh place.
Lap 14: The Safety Car was deployed, following an accident of Nelson Piquet (Renault).
Lap 17: The pit lane was opened and both Vodafone McLaren Mercedes pitted; Lewis was stationary for 11.5sec and Heikki 12.0sec. One lap later, Lewis was ninth and Heikki 15th.
Lap 20: Re-start. Lewis was eighth and Heikki 14th.
Lap 27: Stop-and-Go penalty for Kubica; Lewis was seventh. One lap later, he passed Mark Webber (Red Bull Renault) and improved to sixth. Heikki was 12th.
Lap 30: Lewis moved up to fifth place, but got stuck behind David Coulthard (Red Bull Renault). Heikki got stuck behind Jenson Button (Honda) and was 11th.
Lap 33: Jarno Trulli (Toyota) was the last driver to pit and Lewis was now fourth.
Lap 34: Heikki came in for his second stop (8.4sec) and rejoined the race in 13th place.
Lap 40: After the pitstop of Nico Rosberg (Williams Toyota) Lewis was third, one lap later he overtook Coulthard and improved to second. Heikki was 12th.
Lap 42: Lewis pitted for the second time (7.7sec) and was now seventh.
Lap 50: All drivers had completed their pit stops; Lewis was now third and Heikki 11th.
Lap 51: The accident of Adrian Sutil (Force India Ferrari) caused a second Safety Car period.
Lap 54: Re-start.
Finish (61 laps): Lewis ended up third; Heikki was 10th.
Comments
Lewis Hamilton
“A positive end to a difficult weekend at this fantastic new venue. I started well, but then my rear tyres faded and, although we had good pace, I wasn’t in a position to challenge Felipe ahead of me. During my first pit stop I lost a bit of time because everybody came in due to the Safety Car period. After that I was unfortunately stuck behind David and although I was clearly faster it was really difficult to overtake him. After the second re-start, I tried to stay as close as possible behind Nico; however, I didn’t want to take chances – particularly as the Ferraris were outside the points. Also, this is not a track where overtaking is easy. The first night race in Formula 1 history was great fun, and I now look forward to the forthcoming double-header in Japan and China.”
Heikki Kovalainen
“I made a good start and was going to pass Kubica round the outside at the first two corners. Unfortunately he touched me and almost spun me around. My underfloor was slightly damaged as a result. I lost momentum and two cars overtook me. When the Safety Car came out and the pitlane was opened a couple of laps later, Lewis and I came in and I had to wait behind him until it was my turn. It then was a strange race and most of the time I was in traffic with no overtaking chances. Halfway through the race I had brake problems and had to conserve them until the finish. I’m happy for Lewis and the team now that he has extended the championship lead and we are on top of the Constructors’ rankings. I will now go for it in the next races and help to make sure that we stay ahead in both championships.”
Ron Dennis
“Today’s race was a very exciting one, full of incidents, triggering Safety Car interventions that had a significant influence on the final outcome. In the last few laps, having seen Kimi’s accident, we advised Lewis not to attempt to overtake Nico but instead to settle for third place and the seven-point lead in the Drivers’ Championship that the resulting six points netted him. Heikki’s race was spoiled by having to queue in the pits. Overall, then, the 2008 Singapore Grand Prix was a hugely successful event, and we’re delighted to have emerged from it with the lead in both the Drivers’ and the Constructors’ Championships.”
Norbert Haug
“A great Formula 1 premiere at night. Lewis extended his championship lead with third place which is a good result. Vodafone McLaren Mercedes leads now in the Constructors’ rankings as well which is also not bad. Thank you to the organisers and Bernie and his team for their efforts – this spectacular event will create a big response.”