'Sideshow' refers to an impromptu gathering of various car enthusiasts in parking lots or intersections. Originating in Oakland, California, the drivers do drifts, figure-eights, donuts, and other illegal automotive stunts to the enthusiastic crowd. The five minute video displays plenty of examples of said stunts while interviewing its participants and the law enforcement trying to control them.
Street-racing being driven from misdemeanor to felony
Tricked-out Acura RSX hoped to help police prevent street-racing
[Source: On Wheels]