The 2017 GMC Sierra All-Terrain, a new variant, has been added to the American carmaker’s line-up in the UAE and GCC. It was launched in the U.S. last year as the All Terrain X. The Sierra All Terrain comes with a standard 355 hp 5.3-litre V8 engine or an optional 420 hp 6.2-litre V8 engine … Continue reading 2017 GMC Sierra All-Terrain launched in UAE and GCC