250 Superkarts have been likened to miniature Formula1 cars, racing on the same famous long circuit tracks around the world that F/1 and IndyCars do, at speeds in excess of 160mph and are, without doubt, the F/1 of the kart racing world. Being fitted with 6-speed 250cc GP motorcycle engines, 4-wheel disc brakes, full bodywork with rear wing, these karts have come a long way from Art Ingels' first "go-kart" and hold outright lap records at many tracks around the world.

As with Formula1 or IndyCars, this is not a beginner's class. Most drivers have started out in Sprint karts, moving to 125 Shifters and then to the 250 Superkart class; or have gained their experience racing bikes or cars and switch to Superkarts. Minimum age for drivers is 18 with at least two years of prior shifter kart or comprable experience.

U.S. Superkarts, LLC, is the organization that promotes the new 250 Superkart pro series in the U.S. and is promoting the United States Superkart Championship (USSC) consisting of an eastern and western division with a final race to crown the U.S. Champion.