Awesome detail
I'm pretty sure that the new wheel isn't in isometric perspective, the top leaning towards us.
The first car's wheels would look awesome with the chrome effect, here's an edit on a possible direction
The AA is also pretty lacking. It's only really a problem on the edges of lots of contrast, like cream and black (i.e on the wheels)
@Manu: [URL*=http://blahblah]words[/URL*] minus the *s