I disagree Chris, from a performance perspective you are correct, but what about the financial one?
My criteria? Sports cars that get the blood flowing that I can buy (with an acceptable, say <12 month wait).
I can comfortably afford an M3, C63 or a GT-R but would have to sell my house or eat baked beans to purchase a Turbo. I am not going to sell my house or eat baked beans (apart from the odd breakfast) so it is just natural for me to compare these sub $200k cars.
From purely a performance perspective you are spot on though, there is no comparison.
Do you see where I am coming from? This wouldn't be the first time if I am making no sense!
BMW E92 M3 6MT, G-Power SKII supercharged, custom exhaust with 100 cell cats and Remus Sport mufflers, Brembo 380mm BBK, BMW Performance steering wheel, LUX H8 angel eyes, CF CSL boot, Hamann CF diffuser, Vorsteiner CF lip, CF grilles, CF gills, CF bonnet vents, BMW Performance stripes, RAC RG63 wheels, Eibach lowering springs, camber modifications.