First, Solar productions bought the car in Europe and my understanding is they sold it before leaving Europe.
McQueen later bought a US 911 with the same color paint. His son Chad has that car as well as his Speedster.
It is NOT green as the '68 Bullitt was, but gray.
I just did recently speak with Chad when he signed my dash in the '08 Bullitt while in Palm Desert and he said he still has the grey car.