While the basic four-door sedan body is unchanged, the race concept ads a comprehensive aerodynamic package, including a deep front splitter, wheelarch extensions, rear diffuser and large rear spoiler. Mercedes-AMG say the standard version of the CLA 45 AMG, available since June, has the perfect genes for a competitive customer sports racing car.
As the world's most powerful four-cylinder engine in series production, the turbocharged AMG 2.0-litre unit generates 265kW (360hp) and maximum torque of 450Nm. Like the standard CLA 45 AMG, power on the racing version is transferred by the AMG SPEEDSHIFT DCT 7-speed sports transmission.
Aero features on the concept include carbon-fibre front and rear apron, flared wings and side sill panels, plus quick-release bonnet and boot lid. Rear wings feature large cooling apertures, while the three-fin rear diffuser and adjustable rear aerofoil ensures additional downforce, as do the front apron with a front splitter. A pneumatic lifting system for pit-stops has also been fitted.
The CLA 45 AMG Racing Series interior features a high-strength steel roll-over cage, Recaro carbon-fibre P 1300 GT racing seat, with HANS system, and integrated fire extinguisher.
A racing steering wheel features shift paddles, while the centre console houses additional controls for the onboard electronics hazard warning system and fire extinguishing system.
Suspension level, spring rate and damper characteristics are all adjustable, as are the track and camber at the front and rear axles. The concept is fitted with AMG high-performance braking system, featuring ventilated discs and an anti-lock system all-round. Light-alloy wheels in a cross-spoke design are shod with racing tyres in size 265-660-18 from technical development partner Dunlop.
Mercedes-AMG says that, with sufficient demand, the CLA 45 AMG Racing Series could enter various national and international race series, with engine output and power transmission variable to suit category rules, with permanent all-wheel drive or purely front-wheel drive possible, as in the standard version.
Like the SLS AMG GT3 before it, the CLA 45 AMG Racing Series was developed by Mercedes-AMG in close cooperation with HWA AG. HWA is responsible for the development and race appearances of the AMG-Mercedes DTM cars on behalf of and in close collaboration with Mercedes-Benz Motorsports.
The HWA team, which originated within AMG, is one of the most successful teams in international motorsports: Ten driver's titles in the DTM and ITC, as well as two overall victories in the FIA GT Championship.