[David_Hayward (RIP)]

I cannot see the lettering but I bet I wondered if they were from one of the volunteer Ambulance organisations with donated vehicles and women who came over from the States? However I can see the letters 'SSVA' at the top which is apparently:
'Les Sections Auxiliaires de Transport Sanitaire'. Under that appears to be 'AMERICAN VOLUNTEERS AMBULANCE'. So I was won the right track..French ambulances, 1939-40 Chevrolets assembled by General Motors de France, Gennevilliers staffed by Americans who came over before the end of the Phoney War. I wonder if the Germans sequestred them?

Thank you for that one! Is that a FIAT on the left parked up?