2020 GMC Sierra HD: The GMC Sierra HD is all-new for 2020. The new heavy-duty truck seats 5 passengers and it sees the addition of all-new exterior and interior looks, as well as powertrain and capabilities. Competitors include the Ford F-250 and F-350, Silverado 2500 and 3500, and Ram 2500 and 3500.
Rear-wheel drive is standard with four-wheel drive being optional. There are five trims available: Sierra, SLE, SLT, AT4, and Denali. Two engines are offered: A 6.6-liter V8 that makes 401 horsepower and pairs to a 6-speed automatic transmission, and a 6.6-liter Duramax turbo diesel engine that makes 445 horsepower and pairs to a 10-speed automatic. Maximum towing capacity is 35,500 pounds.
Available driver-assist technology includes Apple CarPlay, Android Auto, rearview camera with cross-traffic alert, adaptive cruise control, frontal collision warning, automatic emergency braking, lane-keeping assist, blind-spot monitoring, automatic high-beam headlights. Pricing ranges from $40,000 to $79,000.