2025 GMC Sierra 1500

GMCs SUVs and trucks are versions of Chevrolets with different badges, different styling, and some extra luxury features. Overall, though, GMCs don’t often stand out, equipment-wise, from their mechanical siblings. Like many Chevrolets, GMC vehicles’ interiors are spacious and comfortable thanks to large exterior dimensions. Its SUVs range from compact models like the Terrain up to the three-row Yukon XL, which can carry up to nine passengers and their luggage—no small feat. GMC’s pickup truck line ranges from midsized models like the Canyon and the popular Sierra 1500, and goes all the way up to commercial-grade “dually” trucks with four rear wheels. The brand has also begun introducing EVs, including an all-electric pickup and the enormous, heavy Hummer EV, which is sold as either a pickup or SUV. Both used and new GMC models rank below average in Consumer Reports’ ratings for predicted reliability.

The Sierra is essentially a Chevrolet Silverado. Power delivery is smooth and responsive, and fuel economy is 17 mpg overall for the 5.3-liter, V8 engine crew-cab four-wheel-drive version. The ride is stiff and snappy, but the cabin is very quiet. Handling is sound and secure. The infotainment system is easy to use. Rear-seat room in crew-cab versions is immense, but the high step-in requires a climb. Helpful options include a power liftgate that can be opened using the key fob, a tailgate that can be configured into a workbench, and power running boards can shift back to help reach the bed. The luxurious Denali version has a 6.2-liter V8 mated to a 10-speed automatic. Blind spot warning and automatic emergency braking are optional on higher trims. Updates for 2020 include an available 3.0-liter turbodiesel six-cylinder engine paired with a 10-speed automatic transmission. The diesel pulls strongly, feels refined, and returns 23 mpg overall. Other changes for for 2020 saw suspension tweaks improving the ride, and the availability of adaptive cruise control. FCW, AEB with pedestrian detection, and BSW became standard for 2022.