In January, the new BMW M3 and M4 will make their official debut at the 2014 Detroit Auto Show.
The new engine in the M3 and M4 (S55 3.0 liter turbo) sees a slight power upgrade over the previous V8 to approximately 430 hp, while peak torque has been increased by well over 30 per cent to substantially more than 500 Newton meters, and is maintained over a very wide rev band. The new powerplant also boasts excellent fuel consumption, with an improvement of more than 25 per cent over the previous model’s figures, while emissions are already EU6-compliant.
The BMW M3 and BMW M4 comes with an innovative flap arrangement in the twin-pipe exhaust system. The electrically controlled flaps just before the rear silencer minimize exhaust back-pressure and produce a BMW M sound which is striking and unmistakable over the entire engine speed range, as well as giving precise feedback on engine load.
Just like recently unveiled M models, the artificial in-cabin sound has been used in the M3 and M4. BMW says that “it’s a small part of the overall acoustic design of the car just like on many BMW models and other cars in the industry.”
Here is the engine sound of the F80 M3 in a parking garage in Munich: