Unveiled at this week’s Frankfurt Motor Show, the new Thunder coupe boasts a 552hp (411kW) version of BMW’s 5.0L high-rev V10 engine, which also has an available 574Nm (423lb-ft) of torque. Power is sent to the rear wheels via a seven-speed SMG transmission, which enables the coupe to reach 100km/h from rest in a brief 4.3 seconds and top out at an unrestricted 335km/h. The extra power over the standard M5’s 507hp (378kW) comes from a new high-flow exhaust system and ECU upgrade.
Modifications to the car’s exterior consist of a new M3-style carbon roof, a front spoiler and rear diffuser. Developers also added huge 405mm two slotted and ventilated brake disks up front with six-piston calipers and performance pads. These reside within a set of three-pieced 20in forged wheels wrapped with Hankook S1 EVO high performance tires.
Gallery after the jump.