A pair of gears, consisting of a circular pinion that engages with the teeth of a flat bar, that converts rotational into linear motion; used in the steering mechanism of cars, and in some railways.

auto racing

(motor racing) Any of various sports in which automobiles (motor cars) are raced, either around a track, on roads or across country

Racing in motor vehicles, such as cars, motorboats, or motorbikes.

A person who races in a race car for a living.

(games, racing) A race in which competitors stand in sacks or similar items and try to be the first to jump to the finish line.

A sports contest where the members of a team take turns e.g. swimming, running or skiing parts of a circuit.

A race run on roads rather than a track.

(UK, automotive, motor racing) A racecar.

(horse racing) A race in which the competing horse can be claimed by anyone at the specified claiming price for the race.