Scrap Rubber Drive Gilmore Topper Buick
The title pretty much sums it up. After the much-modified Buick was created by Bohman & Schwartz and used in the movie, Gilmore Oil used it to publicize a rubber scrap drive. Postwar, it was again modified with '40's Buick lines and Caddy taillights/fins.
Note the cool Gilmore Lion license plate "topper!"