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Wiktionary
motorsport

n. 1 auto racing 2 Any sport involving automobiles (motor cars) other than racing; e.g. time trials

Wikipedia
Motorsport

Motorsport or motorsports is a global term used to encompass the group of competitive events which primarily involve the use of motorised vehicles, whether for racing or non-racing competition. The terminology can also be used to describe forms of competition of two-wheeled motorised vehicles under the banner of motorcycle racing, and includes off-road racing such as motocross.

Four- (or more) wheeled motorsport competition is globally governed by the Fédération Internationale de l'Automobile (FIA); and the Fédération Internationale de Motocyclisme (FIM) governs two-wheeled competition.

Usage examples of "motorsport".

We pulled out your stock fuel injection system and replaced it with Ford Motorsport GT-40 fuel injectors.

Before I knew what was happening, the little switch below and to the left of my steering wheel snapped down of its own accord, nitrous oxide sped into the Ford Motorsport GT-40 fuel injectors, and the chase was over before it had time to begin.

Here were about a hundred bikers, mechanics and assorted motorsport types milling around in the pit area, signing in for tomorrow’.

Here were about a hundred bikers, mechanics and assorted motorsport types milling around in the pit area, signing in for tomorrows race, idly sipping beers and appraising each others machineryand right in the middle of all this, oblivious to everything but the clay pigeons flipping out of the traps every five seconds or so, the shotgun people never missed a beat.