In 2011 Manhart Performance debuted the MH3 V8RS Clubsport to the world. The project starts with a BMW E92 M3 with a naturally aspirated 4.0 L S65 V8. Manhart swapped the S65 for a twin-turbo 4.4 L S63 V8 from a BMW X6M. They upgraded the V8 with better rods and pistons, upgraded turbochargers, custom intake, and titanium exhaust. The result was 750 hp (551 kW) and 910 Nm (671 lb-ft) of torque. Manhart also swapped the factory transmission for the six-speed automatic from the X6M. To help control the extra power the factory brakes were upgraded to MOVIT six-piston calipers with 396×34 mm rotors in front and four-piston calipers with in rear. On the outside Manhart installed carbon fiber spoiler lip, side skirts, wheel arch extensions, rear diffuser, trunk lid and a set of MHR Concave One Black Edition wheels (20×9, 20×12).
Source: Manhart Performance