Speed bumps installed to stop sideshows in San Francisco

The San Francisco Municipal Transportation Agency has seven pilot locations where various techniques are being used to prevent stunt driving, donuts and speeding. Oakland and San Jose are also installing donut-deterring devices to stop sideshows.

Video: Vallejo sideshow leaves 2 injured, 1 critical

Police in Vallejo are investigating two sideshow-related incidents after one person was shot and another was hit by a car on Sunday night. Video shows the chaotic scene with over 200 cars involved.