A doughnut is a vehicle driving maneuver characterized by an intentional and sustained oversteer action. The maneuver entails rotating the rear or front of the vehicle around the opposite set of wheels in a continuous motion. This creates a circular skid-mark pattern of vulcanized rubber on the pavement and typically generates significant tire smoke due to friction. While common in motorsports and stunt driving, the maneuver is also associated with illegal recreational activities on public roads such as "street drifting" and "sideshows".