GMC Sierra All Mountain concept dominates the snow in Vail, Colorado

GMC has whipped up what might be the ultimate truck for conquering the snowy mountain roads and fields of Vail, Colorado. The truck is the 2018 GMC Sierra 2500HD All Mountain concept. The truck is said to be a one-of-a-kind snow-climbing machine. Rather than rolling on big wheels and tires, this concept has four tank-like treads. The concept was built … Continue reading