Personally, I think they're a little too "bling bling" for a mustang. If you were driving a lexus, it'd be different.
But living in Richmond VA (trashy ghetto capital of the east), I'm a little sick of any chrome wheels. If they're tasteful... that's fine. But if they are $10k, twenty inch spinners, on a minivan that is worthmayber a thousand bucks, I just have to shake my head.
Sorry about the little rant. But I just don't think those wheels would really work on a new stang. But that's my opinion, and to each his own... if you like it, enjoy!