Usually an oval track with an unusual amount of oil and other fluids on it making it diffcult to drive. The cavity of low-pressure area created by a moving object. In racing, drivers use this slip stream to draft another vehicle. The amount of flex in the side wall of a tire in racing. Race teams can use the stagger of the tire to stiffen the spring ratio of the car by adding air to the tire and thereby change how the car handles.
Teams generally use sticker tires during qualifying, then use scrubbed tires in a race.
See scuffs or scrubbed tires. This penalty can be assessed for anything from speeding in the pits to contact with an opponent. Usually refers to applying racer's tape to the brake duct opening in full bodied cars. As these strips accumulate debris, a driver or pit crew can tear a dirty strip off for a clear view. Drivers in open cars go through about five tear-offs a race.