Dude, its tough; cause I like the German cars, and I like the American Muscle.. I could do without the Italians, honestly (don't much care for most of their exhaust notes, high pitches hurt)
In the end I chose American, because 1 - I like the aussie cars too, and the ones featured are GM and Ford derivative, so technically they're American cars too, just not.. sold.. here (now that pontiac is dead anyways).. plus you also have the Opels, etc, from GM and Ford too. We're evArywhere!
Chrysler -- Dodge / Jeep lines in Europe and Au
Ford - FPV, etc, in Aus; Ford EU, etc.
GM - .. clones of everything.. everywhere.
.. yep, def. American FTW!