The latest is this one-of-a-kind shifter kit with a jet engine built by "Turbo" Tim Arfons, according to Winding Road, who is the son of Bonneville Salt Flats legend Art Arfons. The kart features ...

The mini Porsche is 7.2 ft long and 3.6 ft wide, making it big enough for full-sized adults. It's also got an impressive ...

Maddox builds pulsejet engines and installs them in motorcycles and go-karts. In this video, he and a buddy take two of these wild machines for a high-speed blast through a dry lake bed.