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RML Unveils Mercedes SLR 722 GT Supercar.
Issued October 29th 2007

RML reveals the new Mercedes-Benz
SLR McLaren 722 GT

After months of secret development, RML has released details of the stunning Mercedes-Benz SLR McLaren 722 GT - a new supersportscar for the racetrack.

Following repeated requests from motor racing enthusiasts among the SLR.CLUB membership, the British motor racing specialists RML Group (Ray Mallock Ltd) has developed the new SLR 722 GT. This puristic super-sportscar is designed exclusively for the racetrack and has no approval for on-road use but will take part in the SLR.CLUB Trophy, a competition series forming part of the SLR. CLUB racetrack programme in Europe.

Compared to the production version (left) the SLR 722 GT has been uniquely and comprehensively re-engineered by RML, with particular emphasis on the suspension, braking system, aerodynamics, interior and exhaust system. More than 400 components were redesigned. The key data for this edition limited to 21 two-seaters includes a kerb weight 1390 kilograms, a maximum power output 500 kW/680 ps at 1.75 bar boost, and a maximum torque of 830 Newton metres - all guaranteed to provide maximum racetrack performance.

The SLR 722 GT already makes a powerful impression at standstill: new body components such as the front apron with front splitter, wide wings, prominent side skirts, the large rear diffuser and the fixed rear spoiler are obvious indicators of outstanding racetrack performance and extensive aerodynamic development work.

Similarly, the redesigned bonnet hints at the supercharged AMG 5.5-litre V8-engine that lies beneath - uprated by RML to develop a peak output of 500 kW/680 ps and a maximum torque of 830 Newton metres. A racing air filter and a new exhaust system ensure outstanding responsiveness and an even more striking engine sound. Dispensing with numerous comfort features means that the SLR 722 GT tips the scales at a kerb weight of just 1390 kilograms. The result is a favourable power-to-weight ratio of 2.0 kg/ps and an acceleration time of 3.3 seconds from standstill to 100 km/h. The maximum speed is 315 km/h (196 mph).

Modified suspension with central wheel locks

Fast lap times are guaranteed by the newly developed suspension: a new wheel location system at both front and rear provides improved kinematics and lateral dynamics. A modified stabiliser at the front axle reduces roll when cornering, while an adjustable wheel camber combined with shock absorbers with variable compression and rebound characteristics allow the suspension to be set up for different racetracks. 18-inch lightalloy wheels with central locks allow fast tyre-changes during a race – which is also assisted by the pneumatic jacking system.

Power is transferred by a five-speed automatic transmission with steering wheel shift paddles, which has been adapted to suit racing conditions. A mechanical locking differential with a locking effect of 70 percent under acceleration and 80 percent on the overrun ensures traction without loss of power. Highly efficient, fade resistant
braking is provided by the new racing brakes complying with FIA GT regulations, which feature a modified cooling airflow and adjustable balance. The interior of the SLR 722 GT is characterised by the functional atmosphere of a thoroughbred racing car. Details include a rollover cage, a redesigned instrument panel with a racing display, a racing steering wheel and bucket seats with six-point seat belts.

Developed by motor racing specialists

Development, production and sales of the SLR 722 GT are in the hands of the renowned British motorsport and automotive specialists RML Group. A maximum of 21 vehicles will be produced. Servicing and participation in racing events is also under the aegis of RML in collaboration with the SLR.SAFETY & SPEED ACADEMY.

The owners of cars already ordered are all members of the SLR.CLUB – a highly exclusive community which organises events relating to the SLR (right) and is chaired by Dr. Dieter Zetsche, Chairman of Daimler AG and CEO of Mercedes-Benz Cars. The SLR.SAFETY & SPEED ACADEMY forming part of the SLR.CLUB offers special driver training courses, and enables customers to acquire a national Category A racing licence. Prominent, highly-skilled instructors for the SLR.CLUB include David Coulthard, Klaus Ludwig, Jochen Mass, Chris Goodwin and Christina Surer. The central focus of SLR.CLUB events is on automotive passion, professionalism and perfection.

The cost of one of the cars is reputed to be in the region of 775,000 Euros.

RML Group Background
The RML Group comprises seven divisions; Motorsport, Automotive, Engines, Events, Historic, X-Power and X-Pro. Based in Northamptonshire, England the company’s 4,300 square metre facility includes full design, development, manufacturing and operational support for automotive engineering projects.

RML has achieved success in a diverse range of motorsport categories including GT/sportscars, touring cars, rally cars, single seaters and oval speedway cars. In 2006 RML teams are competing in the FIA World Touring Car Championship, the Le Mans 24 Hours and the Le Mans Series.

RML work together with a number of specialist official suppliers and technical partners, including Autoglym, Beissbarth UK, DuPont Refinish and Chicago Pneumatic.

More information on RML is available at