Hello.
I have a question, that would make a great little quiz for all Sports car lovers.
I have bought a poster from Gulf, which features 2x Porsche 917's 1x Ferrari 512 and a Alfa Romeo (same class as the 917 and 512).
One of the Porsches carries #9 and is in Gulf colours.
The other one is white'ish (the poster is in black and white) and carries #11.
The 512 carries #1.

Which race is this picture from!?
(i do not know the answer)

Cheers