About Ultra4 USA
Ultra4 USA is a National race series beginning each year at the toughest one day race in the world, King of the Hammers. Ultra4 cars are unlimited 4 wheel-drive race cars. Rocks, deserts, hillclimbs, whoops and trees may be found in an Ultra4 racecourse. Ultra4 racing was originally organized for the purpose of racing King of the Hammers. The cars are capable of speeds of 120+ miles per hour paired with navigating the most technical rock trails in low-range, 4 wheel drive, to the quick switch of a wide open desert. Ultra4 Cars race annually in Johnson Vally, CA every January/February, as well as in the Ultra4 USA National Championship Series through the year. Races are held coast to coast, as well as Internationally with Ultra4 International and Ultra4 Europe.
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