The latest GMC Sierra is one mean-looking truck, and it puts the Ford F-150 to shame in many departments. For starters, it looks really cool thanks to that massive front grille, the tall headlamps, and the no-nonsense bumper. It also comes with a lot of premium features in Denali trim. Last but not least, it’s available with a carbon-fiber bed, the first such feature to be offered on a production truck. Say what you will, but it definitely beats the F-150’s aluminum construction. But GMC didn’t stop there and just took things up a notch with the Sierra AT4. Unveiled ahead of the 2018 New York Auto Show, the AT4 is a slightly more off-road capable, yet fancier version of the regular Sierra 1500.