Big wheels, big motor, big horsepower. In this instalment of American Tuned, Rob Dahm explores the head-spinning world of Donk racing, where 70's Chevys get paired with 26-inch street-rubber tyres and monstrous horsepower. Hot Rod, owner of Kut-Da-Check Racing gives Rob a tour around his shop, explaining the ins and outs of big wheel racing, before taking his personal Donk down to the drag strip to show how fast it really is...