Corvette ZR1 vs GMC Sierra Race 1
Race 1: stock 2010 Corvette ZR1 with semi slicks 1/4 mile time 11.33 vs 2007 GMC sierra 6.2 engine, supercharged small pulley (magnacharger) , camshaft , nitrous and more.1/4 mile time 11.80.
665 HP 2015 GMC Denali vs Hellcat Drag Race
John Hennessey test drives and discusses the 2015 GMC Yukon Denali XL with HPE650 Supercharged upgrade. Check out what happens when this ginormous SUV races a 707 hp Dodge Challenger ...