What about the 2004-06 Pontiac GTO? Americans shunned it because, underneath the ducts and spoilers, it looked too much like a bloated Chevy Cavalier, or at least that's what they thought. I beg to differ. As a fan of Aussie muscle, I think it looks as awesome as its forebears.
It was actually based on, of all things, the Holden Monaro V2/VZ (itself a two-door coupe version of the contemporary Commodore sedan), and the most unfortunate thing was, there will never be a car quite like it ever again, what with the Australian car industry now being on its last legs and well beyond the point of no return, as it has been for quite some time.
Considering that US-spec GTOs were always offered with a big, grunty V8 (an LS1 in 2004, and an LS2 thereafter) it's a shame that it sold so poorly. Especially considering that the Australian motoring press raved about it from the start, comparing it favorably with its key rivals. In fact, the LS2-powered GTOs were more powerful than a contemporary M3 - and cheaper, too.