thumb|A cross car on a Czech autocross course Autocross is a form of motorsport in which competitors are timed to complete a short course using automobiles on a dirt or grass surface, except where sealed surfaces are used in United States. Rules vary according to the governing or sanctioning body, such as the length of the course, the number of permitted attempts, or whether competitors start the course individually at intervals or at the same time as others. In this latter form, Autocross differs from other forms of motor racing by using a system of heats or alternative timing methods for the
thumb|A cross car on a Czech autocross course Autocross is a form of motorsport in which competitors are timed to complete a short course using automobiles on a dirt or grass surface, except where sealed surfaces are used in United States. Rules vary according to the governing or sanctioning body, such as the length of the course, the number of permitted attempts, or whether competitors start the course individually at intervals or at the same time as others. In this latter form, Autocross differs from other forms of motor racing by using a system of heats or alternative timing methods for the classification rather than racing for position and declaring the first across the finish line as the winner.
Autocross began in the United Kingdom in the early 1950s at an amateur level within local motor clubs using temporary courses marked on grassy fields to not cause damage to any cars. The creator of rallycross, Robert Reed, wanted a version of autocross with more spectator-appeal to be made for television, using professional racing and rally drivers and teams; and courses featuring jumps, sharper corners and a mixture of sealed and unsealed surfaces.
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