My first reaction to this license is "isn't Hot Wheels a toy for young boys who like cars but can't own or drive them?"
Then look at the Gen X pinball demographic. We've all either owned real sports cars at some point in our lives, driven around and gotten tickets, or perhaps have a classic car in our garage right now. Or you've got a respectable looking family man sedan but the engine has major balls and would make the 6 bangers you drove in high school look like a Stomper. Ultimately, the "wish" of metal toy cars isn't very relevant to us.
Other themes like TMNT and He-Man are also childish but they have characters and universes to explore. Also a big part of Hot Wheels is reproductions of classic cars / special cars. Will those licenses carry through to a pin or will we end up with another Gomez Motor Company fake truck?