Speaking of the bonnet, a brand new six-cylinder engine is expected to be under there. Some reports speculated it’s a 3.3 engineered with parts from the M5’s V8. But we believe BMW will use a 3.2-liter block like in the old E46 M3. This will have at least two turbochargers to reduce lag and provide better fuel economy. A third one is possible, as BMW has yet to use the electric turbo in a petrol engine.
But perhaps the most interesting tidbit of information revealed by these spyshots is the interior. We don’t know if this is a complete M3 interior, since it’s mostly the same as a 3-Series. However, the gearshift lever is indicative of an M-tuned 7-speed DCT, while the steering wheel is also an M design.