Noun
(automotive, motor racing) A car with a fan to create a vacuum underneath the car, increasing downforce and better sticking the car to the driving surface, increasing traction.
(fandom slang) A car designed to replicate or display an element that the particular aficionado(s) desired
Coordinate terms: replica, itasha
(rail transport) A car used to clean tracks of light debris, to prevent trains slipping on the rails, by blowing air to blow away debris.
Coordinate term: vacuum car