[del]

S4 all the way. the Z is a great car but for all intents and purposes, the S4 just does it all. luxury, speed, awd, safety, looks, trunkspace, V8, seats 4. you can't lose. i'd certainly buy a Z as a nice weekend car if i could afford that many car payments. haha.

but like Dinan said, not the greatest comparison as you obviously can't call the S4 advantages over the Z that i've just mentioned very fair since they're different kinds of cars. performance-wise, they're very comparable. but i think the Z would be the funner car to drive even though it's just slightly slower. audi is notorious for isolated driving experiences. little road feel and the overall quietness of the cabin just removes that whole element a bit more. if i'm at a road course race and given the chocie of the 350z or the S4, i'd probably choose the 350z, but for the street, i'm gonna go with the S4