I Bought a Vampire Motorcycle - Dirk Campbell - UK - (1990)

http://www.imdb.com/title/tt0097550/

Plot by Imdb: "When a motorbike gang kills an occultist, the evil spirit he was summoning inhabits a damaged bike. The bike is then bought and restored, but reveals its true nature when it tries to exact vengeance on the gang, and anyone else who gets in its way" 

If all B-movies were like this English piece of madness, b-movies would have a better reputation. With an improbable title, this improbable story of a blood sucking motorcycle is funny all along and doesn't take itself too seriously. Some sequences are so insane (the exorcism of the bike, the attack in the hospital) or grotesque (the fight in the medieval pub is one great moment in comedy history) that all the amateurish aspects of the production disappear. The ultimate goal of a b-movie is to give a good time to its viewers. "I bought a vampire motorcycle" does exactly that and manage to succeed where so many "xeroxed b-movies" fails. Cheers for the crazy Brits !

Trailer: