The Inland Empire of Southern California is the place to be for all kart racing action as K1 Speed in Ontario, California will be wrapping up their Challenge GP Race Series this coming Sunday December 11th on the Super-Track configuration! Drivers will have double qualifying rounds to lay down a fast lap and try to grab pole position and the extra bonus points in the points chase. The over all champion for the second half of the race season will be awarded this Sunday as well. Sign-ups will begin at 630PM with qualifying starting at 7PM! Entry fee is $50 per driver.