there is actually a buddhist temple (osu kannon) in nagoya, japan, dedicated to cars. if you're ever in nagoya, find out when their periodic flea market is. it's the best! the shops down the spoky side streets are good too; there used to be a cool one that sold used kimonos for reasonable prices. i haven't been there for some decades so it might not be there anymore -- or it might be but the prices may no longer be reasonable lol. but i am sure you can still go get your car blessed at the temple!
g