Yeah, I have a 99 Mustang 6 banger, gladly take the GT over it. And I would rather drop a Cosmos engine in another Mazda. And for my car a Dodge Stealth R/T or a 3000gt VR4.
Actually, now that i rethink it...id probably be a lil more happy with something along the lines of an NSX. But....one car for the rest of your life? After a while, no matter what, it would get kinda boring.