Photographs of the Speed & Sound 111 Sports and Saloons DE races at the Extreme Festival race meeting at Zwartkops Raceway on 21 February 2015. Back to Extreme Festival Gallery no images were found Back to Extreme Festival Gallery Share this...FacebookTwitterLinkedinPinterestStumbleUponDiggReddit Tags: Zwartkops Raceway, Speed & Sound, 111 Sports and Saloons, Extreme Festival