Originally Posted by Rated ///M
Yes, FI engines usually are good for tuning, but that's about it. That is the only advantage they have.
- more power at a given engine weight (including intercooler paraphernalia)
- an infinitely tunable torque curve (great for coming off corners)
- better mileage
PS - Anecdotally, my old SRT4 (bone stock except for track sneakers and pads) would give E46 M3s all they could handle around a given track, except on a long straight. It was well down on power to weight (230 HP, 2920 pounds full of gas), but it would come out of corners like a striped ape while riding the boost.
E36s were for breakfast.
I'm really looking forward to the new M3.