A dragula is a car that is a herse, coffin, or any other thing associated with death that is modified to run as a muscle car.
Built buy Rob Zombie originally who was inspired by one of the cars featured in the episode Hot Rod Herman of the popular television series The Munsters that was a Hot Rod made from a coffin. (In addition, Rob Zombie also made a song by the same name about the car he had modified into a Dragula.)
Episode Description: Eddie, under the impression that his father is the greatest driver in the world, volunteers Herman in a drag-strip competition. After souping up the Munster Coach and dressing up like Marlon Brando in his Wild One days, Herman loses his car in a drag race. In a rematch, Grandpa races in the Dragula, a motorized coffin on wheels.