I think the light blue car on the in front of the Ford is a '55 Pontiac, on the right of the trailer I think thats another red '55 Pontiac, and the last car on the right, beige and white two tone might be a '55 dodge, I don't know my mopars well enough.
On the car hauler looks like it could be '55 Mercurys ? ? front fender profile, and that slope to the rear looks a match ?