This is a very cool car. I want one. It looks to me like a 1938 Chevrolet. 1938 Chevrolet sales brochure: [link] Tail lights, the styling line that angles down behind the front fender, the headlights, the trunk hinges and the badge in the middle of the trunk (from the 3720x2400 download image) are all 1938 Chevrolet. Plus, the Plymouth had a hood ornament that looked vaguely like a sailing ship. The one in your photo looks like the Chevrolet hood ornament in 1938, especially in the full size download image.