THE NEW BMW M4 DTM.

Ready for the new season.

THE NEW BMW M4 DTM.

Ready for the new season.

The new BMW M4 DTM.Ready for the new season.

Four titles in three years. The vehicle designation BMW M4 DTM stands for big success. In keeping with this, BMW Motorsport has a lot planned for the new season of the DTM, which starts on May 5, 2017. This year marks the dawn of a new era. A change in regulations led to an overhaul and significant new developments for the successful model BMW M4 DTM. Distinctly modified aerodynamics and an enhanced performance of over 500 hp provides for even more excitement and attraction at the race.

 

50 times 15: that’s the formula which the BMW Motorsport aerodynamics engineers were working with when they developed the new BMW M4 DTM before the 2017 season. 50 days in the wind tunnel were allowed, at a maximum of 15 hours per day. Not a minute more. The parameters were set by the German Motorsport Association for all manufacturers. Every minute counted. This made preparations all the more important. Before it went into the BMW Aero Lab, the aerodynamics experts ran through the effects of changes on the individual components – even before a component was built. The Computational Fluid Dynamics (CFD) already used up to 600 high-performance computers in almost a full day.

Wind tunnel testing.

If the part proved itself during the simulation, variations of it were tested further on the 60-percent model in the wind tunnel.
Of particular focus was the structure of the car model used in the wind tunnel. In comparison to the development of the 2014 BMW M4 DTM, it was constructed modularly in order to permit faster changes to individual aspects of the aerodynamics. For example, the engine bonnet consisted of eight components during the tests, each of which could be swapped out independently.

Even more innovative power.

The DTM regulations for the 2017 season provide for a larger diameter for the air flow limiter, through which the BMW V8 racing engine draws its combustion air. The power pack consists of almost 4,000 individual parts, weighs only 148 kg and now has over 500 hp. For its construction, BMW Motorsport uses resources from BMW AG. The high-tech foundry connected to the BMW factory in Landshut, for example, contributed to the large castings like the cylinder head and crankcase. Even small parts come from innovative manufacturing processes: a water pump wheel made of aluminium alloy comes from a 3D printer and has proven itself to be superior in the world of racing sports since 2015.

The excitement grows day to day.
Marco Wittmann

Marco Wittmann, who starts the season as the title defender, is counting the days to the first race. But first he shows us the most important new features of his new machine.

BMW M4 Coupé:
Fuel consumption in l/100 km (combined): 8.8 to 8.3
CO2 emissions in g/km (combined): 204 to 194

 

BMW M4 CS:
Combined in l/100 km: 8.4
CO2 emissions combined in g/km: 197

Further information about the official fuel consumption and the official specific CO2 emissions for new passenger automobiles can be found in the 'New Passenger Vehicle Fuel Consumption and CO2 Emission Guidelines', which are available free of charge at all sales outlets, from Deutsche Automobil Treuhand GmbH (DAT), Hellmuth-Hirth-Str. 1, 73760 Ostfildern, Germany, or under http://www.dat.de/en/offers/publications/guideline-for-fuel-consumption.html. The figures are not based on an individual vehicle and do not constitute part of the product offer; they are provided solely for the purposes of comparison between different vehicle types. CO2 emissions caused by the production and provision of fuel or other energy sources are not taken into account in the determination of CO2 emissions pursuant to Directive 1999/94/EC.

All vehicles, equipment, combination possibilities and varieties shown here are examples and can differ in your country. In no way do they constitute a binding offer by the BMW M GmbH. Visit your local BMW website or see your authorised BMW M Retailer for accurate details on the offers in your country.