What kind of vehicle is the 2023 GMC Sierra 2500HD? What does it compare to? The 2023 GMC Sierra HD is a full-size, heavy-duty pickup that compares well with the Chevrolet Silverado 2500HD, Ram 2500, and Ford F-Series Super Duty. Is the 2023 GMC Sierra 2500HD a good truck? Capable, comfortable, and somewhat stylish, the GMC Sierra 2500HD and...