5.0.
I test drove one of them and it's a freaking beast. I didn't think they'd let a 17yo test drive a GT, but I guess I was wrong haha. Showing up in a Bimmer with a shirt, tie, and dress pants probably helped lol.
Anyways, it looks better than the Honda imo, especially in white or black. Buy the track pack and Recaro package and bam, you have a track car. It also has 400 more torques than the S2000 and 300 more horsepower.
I'd be driving a 5.0 if my dad would let me.