This all-new 2026 GMC Sierra 2500 AT4 has just arrived at MacMaster Chevrolet, your heavy-duty truck destination in London Ontario. Built for serious capability with premium comfort, this Sierra HD is ready to tackle workdays and weekends across Southwestern Ontario.Whether you're hauling equipment to a job site, towing a trailer through rural backroads, or powering through tough winter conditions outside the city, the Sierra 2500 AT4 is engineered to perform. With 4WD, an off-road suspension, skid plates, and the legendary Duramax® diesel, it's perfectly suited for Ontario winters, long highway pulls, and demanding workloads.One standout feature is HD Surround Vision, giving you a complete, confident view around the truck while maneuvering tight job sites or lining up a trailer. Combined with trailering camera provisions and adaptive cruise control, this advanced safety and tech system reduces stress whether you're backing into a work zone or cruising on the 401. It's heavy-duty strength backed by smart, driver-focused innovation.Visit us at our Driver Lane Show room or call[Phone Removed] to schedule your test drive.