I Was a Teenage Vampire (1959)

Dracula's teenage son is in search of new victims. He transforms himself into a bat to travel on a steamship from Transylvania to the United States of America (USA). Once in the USA he preys on members of a teenage gang, the Vandals. When the day dawns, the teenage vampire transforms himself into mist, until he is able to return to his coffin, which is hidden in a cemetery. When a rival teenage gang - the Vultures, attack the Vandals, the vampire uses this distraction to transform back into human form. He steals one of the Vandal's motorcycles to return to the cemetery. But it is too late, for the rising sun destroys him, causing the vampire to crash into the cemetery gate.