Provided BMW would let us choose the engine and offered you 3 Alternatives
- A proved good and unique but "old" slightly modified engine with slightly less horsepower and slightly higher consumption ... as an example S65(Tü?) 4.0ltr.V8 with 420-440HP. 400-430Nm, 9.9 ltr/100km, Redline 8.300rpm
- A modified AG-engine with more horsepower and low fuel consumption ... as an example S55 3.2ltr.I6 TriTurbo with 450-480HP, 500-550Nm, 8.7 ltr/100km, Redline 7.000rpm
- A totally new and unique, but tradition breaking engine even with more horsepower and low fuel consumption ... as an example S66 3.3ltr.V6 BiTurbo with 450-480HP, 500-550Nm, 8.7 ltr/100km, Redline 7.500rpm