User blog comment:Tailsyochicken/Cars 3 Idea/@comment-5208267-20120702020704/@comment-4898428-20120713180003

but remember: Mater shouldn't be considered such as a spy. He is a tow truck. He got unfortunately in a spy work, but his profession is tow truck and Lightning McQueens' crew chief (after Doc's death). So Mater is only Finn and Holley's big friend and Holley's husband.