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Glossary

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OFF LINE
Driving off the best racing line. Drivers will go off line to attempt a pass or to move out of the way of faster cars.
ON THE THROTTLE
A driver has the pedal to the metal.
OPEN WHEEL
Champ car style race cars, which are designed to have the suspension, wheels and tires, exposed, no fenders. Additionally, sprint cars, midgets and modifieds fall into this category.
OTL
Over total lateness, meaning a rally car has fallen so far behind schedule it is excluded.
OUT-BRAKE
A driver gains time and position on an opponent by applying the brakes later and deeper into a corner.
OUTSIDE GROOVE
The outside racing line. Sometimes a car will handle and perform better on the outside/inside line and a driver opts not to use the optimum groove.
OVAL
An oval-shaped track such as Atlanta Motor Speedway.
OVERSTEER
A condition when the front of a car has more grip than the rear. This is the same as a car being "loose."
OVERTAKE
A term commonly used by announcers meaning a pass.