The term 'stock car STICKER' is a combination of two words, 'stock car' and 'STICKER'. Stock car is a type of automobile racing that involves cars that are modified from their original factory specifications. A STICKER is a type of adhesive label or DECAL that is used to decorate or identify an object. The crossword solution for this term is 'DECAL', which is a type of adhesive label or transfer that is used to decorate or identify an object. Decals are often used to customize vehicles, including stock cars.