1. a motorsport event in which drivers navigate a course marked by cones on a paved surface, typically in a parking lot, competing for the fastest time.
Usage: common in amateur racing; also called a slalom event

1. to participate in or compete in an autocross event.

Examples

• She entered her first autocross last weekend and finished third in her class.
• The autocross course was set up in the empty parking lot with orange cones.
• He has been autocrossing for five years and has won several regional championships.
• Many drivers use autocross events to practice their car-handling skills.
• The autocross series runs monthly during the summer season.
• They autocross their modified sedan every other Saturday.