A U.S. buyer guide to pricing, cargo space, V-8 and diesel engines, towing, trims, and family usability The GMC Yukon 2026 is a full-size, three-row SUV built for buyers who need truck-based towing capacity, adult-friendly passenger space, and room for family cargo. It is available in standard Yukon and extended Yukon XL body styles, with five trims and a choice of two V-8 engines or a torque-rich turbo-diesel inline-six. The 2026 model largely carries over…