Funny cars are so named because they have some quirky features, such as the fact that the entire body of the car has to move in order to let a driver get in or out. These drag racing cars typically have a standard metal chassis over which a carbon fiber or fiberglass body shell is fitted.

Most funny cars are totally custom made, but they are sometimes designed to look like a specific make and model of commercially available automobile, such as a Ford Mustang or Chevrolet Camaro. Usually, funny car makers will design their car to look as close to a current model year as possible.