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 ...

Electro & Co. sells the electric motor kit for $7,500–though a sale is going on now–and you can pick up a shifter kart frame for under $1,000 on the used market. Then all you’ll need is a ...