Off-road vehicles have a large following because of their many uses and versatility. Several types of motorsports involve racing off-road vehicles. The three largest "4-wheel vehicle" off-road types of competitions are mud racing, desert racing, and rockcrawling. The most common use of these vehicles is for sight seeing in areas distant from paved roads. The use of higher clearance and higher traction vehicles allows access on trails and forest roads that have rough and low traction surfaces.