Felber Excellence Fastback, coupe & spider (c1977)
the Swiss coachbuilders Felber took series production cars and added their signature grille and other mods to sell them on at premium prices.
Thus the Excellence range was based on the 1970's Pontiac Firebird.
apparently they made 12 in all, most of them notchback versions, the fastback features a hatchback.
the taillamp were sourced from a Fiat 850 Spider.