The best in indoor kart racing action can be found in the Inland Empire in Southern California with K1 Speed in Ontario California hosting their fourth round of their Challenge GP Race series the Sunday April 15th. The best of the best in San Bernardino will be battling it out on our well known super-track configuration layout which is being ran IN REVERSE during the first half of the 2012 race series. The points championship is a close battle and drivers are all going after a podium finish and a chance at the top spot in the championship points standings. Come join us this Sunday April 15th for sign-ups at 6:30 PM with qualifying beginning at 7:00 PM. Entry fee is $50 per driver – BE THERE!