
Manhart gets ahold of the BMW M4 CSL and turns it into the MH4 GTR II. The powertrain tuning pushes the twin-turbo 3.0-liter inline-six engine to an impressive 702 horsepower (524 kilowatts) and 649 pound-feet (880 Newton-meters). For comparison, the model's stock output is 543 hp (404 kW) and 479 lb-ft (649 Nm).