Originally Posted by MisterEm
BMW used the N54 in the 1M years after it being released, it didnt stop them. The N55 was released years after the N54 aswell and still had issues. So im not so sure. Either way its DI, im almost certain its gonna have carbon buildup issues.
Outside of the issues and all. It just a shame to have a setup that is so similar to the generation prior 3 series, 7 DCT with a DI I6 twin turbo. Its a shame. 424hp in a M3 isnt good enough IMHO either, you got 550i luxury sedans with 445hp now. The noise the current V8 M3 makes is amazing, the I6 twin turbo cant compare. ( And i was a N54 owner for 6 years)
Let alone the new C63 is rumored to have a small TT V8 coming in it.
Engine is a fail, for me anyways, i feel its a step back. Being in a M car is about experience, the engine is almost always half give or take to each owner. The TT I6 is a experience every 3 series for the last 6-7 years has experienced, there isnt anything to be seen with this engine. When BMW put the High revving V8 in the E9X M's, the experience was amazing and unique. "