Many dedicated off-roader fans prefer to build their rigs from scratch, opting for more basic stock trucks, then upgrading them with varying degrees of intense aftermarket parts. This can be a great ...

The GMC Sierra AT4 is already a serious off-road truck. Two-inch factory lift, skid plates, four-wheel drive, hill descent ...

GMC, itself one of General Motors' four main brands, has become host to a motley collection of sub-brands of its own. The luxurious Denali, created 25 years ago, has been a huge success as a top-tier ...

Although we suspect few Terrain AT4 owners will ultimately venture off-road in any real capacity, the AT4 trim is arguably the variant in which all Terrains will derive their credibility. While its ...