You'd just be in a different gear when you get destroyed by a 318i.
Also VVT *should* make a car which can produce good power but manage good fuel economy if you go easy. It's one of the reasons Fox's 230bhp 530i can beat 30mpg sometimes.
So gear ratios have no effect on performance?
Yes, I am entirely clueless regarding transmissions - any articles around that would explain it?