Originally Posted by
LeonOfTheDead
a car that can run both on 4wd or 2wd (normally rear ones) on demand.
I think you're wrong about that. The front engine V12 cars have rear transmissions, which means to make them AWD you'll need two drive shafts. Nissan does it on the GT-R and it's very heavy and very complicated. More likely you'll see it in the replacement for the 430 because doing AWD in a mid-engine car is much easier.
Also, the new issue of EVO says the follow up to the Enzo will have V12. No word on turbos.
"The Metric System is the tool of the Devil! My car gets 40 Rods to the Hogshead and that's the ways I likes it!" -Grandpa Simpson