According to the well informed (censor) it is a 1983 Gryff.
I think that we have a one source. Point...
... and story:
Pierre Läubin's Gryff was born in Allschwil near Basel as a license production of the Nova GT in 1983.
Disc brakes on all wheels and motors from Porsche 911SC (with 204 hp) or Ford Capri (with 150 hp) guaranteed super sports car performance and moderate deceleration, not least thanks to the favorable light weight of 900 kg.
Price: 70,000 (Ford V6) or 80,000 francs (Porsche).
How many cars of the Gryff Läubin built is - unknown, as is the fate of the prototype and other vehicles.