BMW Turbo Power is a motorsport success story – and has been for 50 years. In 1969, Dieter Quester won the European Touring Car Championship with the BMW 2002 TI. The first BMW Turbo in motor racing – the M121 – provided the necessary drive. In line with the Class 1 regulations, turbo technology has arrived in the DTM in 2019. To this end, BMW Motorsport has given the BMW M4 DTM a brand-new heart. The V8 engine is a thing of the past. In its place is a newly-developed turbo engine – the P48.
Despite the 50 years that lie between them, the two high-performance engines have a number of similarities: Both are straight, four-cylinder engines with a two-litre capacity and a turbo charger. In both the BMW M121 and the P48, the sensitive engine components must be protected by a heat shield from the heat emitted from the turbo charger. A mechanical injection pump supplies the engine with fuel in both cases.
The pressure, with which the combustion air is supplied to the engine, can hardly be compared any more. Nowadays, boost pressures of up to 2.5 bar are possible with more than 600 hp. However, the two engines still share their greatest similarity: Both are 100 percent BMW.
The exterior of the BMW M4 DTM is virtually the same as last year. The most striking modifications: The rear wing is far wider than that of its predecessor, while the number plate at the front and the second tailpipe, which was to be found on the left side of the car in the past, have been done away with. There have also been modifications to the aerodynamics. For example, the protrusion of the front splitter has been reduced by up to 90 millimetres. Two new components stand out inside the BMW M4 DTM: A firewall is now located behind the driver’s seat, making the car even safer. Furthermore, the BMW M4 DTM is now equipped with a rear-view camera “as standard”.
All in all, BMW Motorsport has built the most powerful DTM car ever in the BMW M4 DTM, modified in accordance with Class 1 regulations. With 600 hp and a top speed of up to 300 km/h, the BMW M4 DTM is accelerating into a new turbo era.