http://www.gymkhanagrid.com to get your tickets for the Dec 4th event! http://gtchannel.com for more Ken Block and Gymkhana videos! Ken Block walks you through the cars, drivers, and course of the Gymkhana GRID race series during a test event in Hollywood Park, CA, and what to expect at the Gymkhana GRID Ken Block Invitational on December 4th 2010 at Irwindale Speedway. Check out www.gymkhanagrid.com for more information.