My order of preference would be:
1) Dual exhaust out the center (ala 2002)
2) Dual exhaust on the left side
3) Quad exhaust.
If this car is an inline 6 with a turbo on top, then a quad exhaust is completely fake and even though the majority here seem to be ok with the fake quads and probably even the fake side vents on ///M cars, I still only accept the quads on the V8 M5 and V8 M3 because they really have two cylinder banks. This is not a honda and we don't need to 'show' the power of the car by how many exhausts it has sticking out the back!
I still like the uniqueness factor of the dual out the center that the 2002 had and so I definitely vote for that as #1 -- as this car is sure to be a rare care from its limited production run and likely limited number of people who will accept it without having quads and fake hood scoops, etc..
