GMC is known as the truck division of General Motors and with the Sierra in its model lineup, it doesn’t disappoint. After receiving a new design in 2007, the Sierra got a more aggressive and aerodynamic look and continues to provide enough power to haul just about anything with either the half-ton model or the Sierra HD. With an all-new two-mode hybrid thrown into the mix, the Silverado looks to take the best-selling crown away from its blue-oval competitor. The GMC Sierra comes with a five-year/100,000-mile powertrain and gets an estimated 19-20 mpg on the highway.