Very common token. There are many different variants to it. Do a simple search on numista ("car wash token no cash") and many of them show up. I have a few lying around somewhere. Not worth much. Maybe 40-50 cents or so. If it was a branded token it would probably be worth a few cents more.
Aaron D.
Oh, and the fact that a vintage car is depicted doesn't make it a vintage token. It must be pretty modern, definitely not older that the first coin operated car wash installations