The 2022 GMC Sierra 3500HD, part of the fourth-generation introduced in 2019, is a heavy-duty truck built to handle strenuous tasks. Available trims include SLT, the luxury Denali, and the off-road AT4. Hulkish turbodiesel V8 presents an astonishing 445 horsepower and 910 lb-ft of torque, paired with a 10-speed automatic transmission. The 3500HD offers either rear-wheel or four-wheel drive. Towing capacity, a key draw for customers, can go up to a remarkable 36,000 pounds with a fifth-wheel connection. Inside, the Sierra 3500HD doesn't lack modern tech with infotainment in the form of a 7- to 8-inch touchscreen, Apple CarPlay and Android Auto connectivity. Safety features include forward collision warning, lane departure warning, and automatic emergency braking in higher trims. The 2022 model saw minor changes adding some features to the lower trims.