Cars are checked for safety at each event, before your first run. Tech inspection is performed by experienced autocross drivers or committee members, and the inspection is friendly. Your car must have a working seat belt, working brakes, a secure battery and tight lug nuts. It also must be empty of anything loose, and the inspector will shake your tires to ensure your wheel bearings don’t have play. They’ll also take a look at your street tires to ensure they have measurable depth with no cord showing. Really, any street car in reasonably good condition should pass this quick inspection without any trouble.