Very Cool ..lots of 'Stangs that never made it
http://www.carbodydesign.com/2013/09/design-history-ford-mustangs-that-never-were
Pretty cool. There’s a couple, that if made today would kill. 8)
Great link.
Other than the Allegro, and Milano, which looked like AMC, or Chrysler products, I'd hit any of them.
The Milano looks an awful lot like a Mopar, so clearly, the best looking of the bunch.