fan car

Short definition from Wiktionary

Noun

1. 1
   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.
2. 2
   A car designed to replicate or display an element that the particular aficionado(s) desired
3. 3
   A car used to clean tracks of light debris, to prevent trains slipping on the rails, by blowing air to blow away debris.