Originally Posted by Levi
It costs more to build a high reving turbo engine like the McLaren MP4-12C's V8, than to add direct injection to the S65 and S85 that were built from zero for only one generation and two cars, E9X and E6X. Why not continue and profit from it? You could even make a 90° V12 from it.
Never though BMW would be the first among Mercedes and Audi to not offer even one single NA engine. Mercedes will still have the SLK AMG (NA 5.5l V8) and the SLS AMG (NA 6.3l V8) and Audi will still have the R8 (NA 4.2l V8 and NA 5.2l V10), the RS5 and maybe even the next RS4 (NA 4.2l V8) and the A8 W12 (NA 6.2l W12).
Regarding the NA engines that you listed from MB and Audi, those are all legacy engines that are either on their way out (6.3L V8 from MB, 4.2L V8 from Audi) or are NA versions of existing FI engines (5.5L V8 from MB, 6.2L W12 from Audi/VW).
Don't get me wrong, I'll be the first person in line to buy the F32 M3 if it has an NA engine. I just think that's a pipe dream at this point.
By the way, when did you move to Italy? Weren't you living in France not too long ago?