For those unaware of the history of these cars, here's the basics: AMC considered replacing it's 1968-70 Javelin-based 'AMX' two-seat sports car with a mid-engine, Italian-inspired sports car for the 1971 model year. Various prototypes were considered, with the 'AMX/3' version being the one that came closest to going into full-production. Sadly, the project was cancelled after a mere half-dozen (approx.) prototypes were built. These pictures are of those that survive today.
For more detailed info, read a document prepared by John Mahoney HERE.