Page updated with your photos. In the picture of the Oldsmobile wagon, I've listed the Porsche 914 instead because it is more visible.

Here are three images of the 1964-66 Chevrolet Chevy Van that crashes into Janeway(William Devane):
http://img301.imageshack.us/g/marathonman196466chevro.jpg/
Two or three stars.

I wish I was able to find the Olds Vista Cruiser and Pontiac LeMans that DAF555 had blanks for, but no such luck. I also tried to capture the 1973-75 Ford F-350 ambulance that Babe tried to flag down, but that didn't work either. I suppose these will have to suffice.

Here's a Pontiac, but it's not a LeMans. It's a 1967, probably a Bonneville. So far, all the cars I've shown you have been one star vehicles. But that won't last.

Here's one of the Olds Cutlass wagons I was talking about. It's right behind the Porsche 914, and it's not a Vista Cruiser.

Earlier this year, I promised that I was going to scan some images from Marathon Man (1976), and fill in the two blanks. So far I'm running into some problems with that. The two empty spaces are apparently of an Oldsmobile Vista Cruiser, and a Pontiac LeMans. The trouble with that is, I wasn't able to find either of those vehicles and I can't find DAF555 to ask where he saw them. However, I have run into other interesting vehicles, which I'll have to capture later on. I did see a couple of mid-sized Oldsmobile station wagons, but neither of them were Vista Cruisers. The only thing closely resembling a Pontiac LeMans that I remember was actually a light green 1968-72 Buick Skylark shown around the time that old lady identified Szell on the streets of New York.