Crossfire/MB bolt pattern is 5x112 and Mustangs are 5x4.5 (114.3) so it wouldn't take much to make them fit. Mustang wheels fit larger bolt pattern Chrysler FWD vehicles too. I used to have an aftermarket Mustang wheel on one of my Avengers and then put them on a newer Intrepid I had. Grand Am wheels also have a slightly different bolt pattern too but I've seen Grand Am wheels on an Avenger.