Whether it’s towing capacity or in-cabin connectivity, the 2025 GMC Sierra 1500 delivers the very best of what drivers expect. This GMC truck brings the reliability you expect from a companion on the road for years to come. Wallingford GMC can give you more information on the Sierra 1500 and help you arrange a closer look. We can answer your questions and more while you’re on a test drive around Wallingford.