Any car you want make doesn't matter !!
I want so many old muscle cars that it's hard to narrow it down. I'd really love a B body with a 426! Preferably a Hemi '68 Charger or Hemi '69 Super Bee like my uncle had.
Other than muscle cars, there's really only one car I drool over and that's the Audi R8. I plan on getting one sometime in the next 5-10 years if all goes well. I like the sound and feel of a V8 but the V10 version has the running gear from a Lamborghini Gallardo. They're far from cheap but as far as mid engined supercars go, it's still pretty affordable.