Manhart got the BMW M4 CSL and converted it into the MH4 GTR II. Powertrain tweaks pushed the twin-turbo 3.0-liter inline-six 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).
To achieve these significant advantages, Manhart installed an additional MHtronik control unit and stainless steel exhaust ending with four round pipes each 4.3 inches (110 millimeters) in diameter. Buyers can choose carbon or ceramic coating for them.
MH4 GTR II also has a more aggressive stance. The suspension gets height-adjustable parts from H&R. Riding on 20-inch Forged+ 1 wheels from Yido Performance. They have a 15 bar design, and the customer can choose the finish.
Manhart fitted an 18-piece carbon fiber body kit to the M4 CSL. Parts include a large front splitter and canards on the outside corners of the nose. The side sills extend outward from the body. The tail gains a prominent spoiler on the trunk lid. The diffuser surrounds the protruding exhaust tip.
The interior gets a roll cage, and a Schroth four-point racing belt is attached to it. The company includes a helmet with the car.
Manhart also offers downpipes without a catalytic converter or with a 300-cell catalytic converter. However, these parts do not have TÜV approval for use in Germany, so are for export customers only.
BMW is debuting the M4 CSL in May 2022 at the Goodwood Festival of Speed. It is the fastest ever series production model from the brand around the Nürburgring Nordschleife at 7 minutes 20.2 seconds.
BMW put the M4 CSL on an extensive weight loss program. This includes extensive use of carbon fiber reinforced plastic components, including the hood, roof and trunk lid. Standard Carbon M ceramic brakes lower the weight by 31.5 pounds (14.29 kilograms) over conventional stoppers.
BMW only made 1,000 units of the M4 CSL. In the United States, this model starts at $140,895 (including $995 destination fee).