2020 GMC Sierra 1500 Test Drive Review: An Interior Away From Greatness

In the pickup truck grudge match between the big three American automakers, Ram overtook Chevrolet for the second-place sales spot below Ford in 2019. But let's not forget about the GMC brand (also owned by General Motors), which combined with Chevy, actually outsold Ram. The GMC Sierra may only be the fourth-best-selling full-size pickup on the market, but it still represents a huge volume for GM and caters to an ever so slightly different segment of the market than the Chevy Silverado.

Whereas the bulk of Silverado sales come from lower-trim work trucks, GMC focuses more on the upper end of the market with trims like the AT4 and Denali. GMC even offers class-exclusive features that are not available on its Chevy counterpart, including a handy Multipro tailgate with six different positions and a carbon composite bed. To see how the GMC Sierra 1500 stacks up against the competition like the Ford F-150 and Ram 1500, CarBuzz tested a 2020 Denali Carbon Pro Edition for a week. There is a lot to love about GMC's most luxurious truck, but it clearly needs one major improvement to be considered best in class.

What's the Price of the 2020 GMC Sierra 1500?

Thanks to a near-infinite amount of configurations, pricing for the Sierra 1500 lineup is a highly complicated affair. The Sierra in its most basic form will cost $29,600, upgrading to the 5.3-liter engine will cost an additional $1,395 and four-wheel-drive will cost around $4,400. The SLE in its most affordable form costs $38,000 with the 2.7-liter turbo engine equipped, while opting for the 3.0-liter Duramax diesel engine will cost an extra $2,500. Upgrading to a Crew Cab drives the price up to $40,700. The Elevation costs $40,500 as a Double Cab with the 2.7-liter engine and $43,200 as a Crew Cab. The SLT with 2WD and the 5.3-liter engine costs $44,500 and upgrading to a Crew Cab with a standard box results in a final asking price of $47,200. A cost of $52,896 accompanies the AT4 driven by the V8 engine, and upgrading to a Crew Cab with a short box and adding the 6.2-liter engine drives the price up to $53,700. The Denali equipped with the standard 5.3-liter engine has an MSRP of $58,900, though our tester with the Carbon Pro Edition package and optional 6.2-liter V8 topped $70,000. All prices exclude the $1,595 destination fee.

2020 Sierra 1500 Exterior

Dimensions

LengthWheelbaseHeightMax Width
229.6 in139.6 in75.6 in81.2 in


2020 Sierra 1500 Performance

Handling and Driving Impressions

The Sierra 1500 feels every bit of its gargantuan size, but thanks to light yet precise steering, it doesn't feel like a burden when maneuvering at low speeds in tight spaces. At higher speeds, the truck feels solid and relaxed through the wheel, thanks due in part to available safety technologies like lane-keep assist. The cab is fairly quiet compared to rivals, though the ride comfort only feels average at best - far from the floaty ride offered by the Ram 1500 Limited's air suspension. Though it is not the softest truck on the market, the Adaptive Ride Control offered in the Denali trim helps provide excellent body control and improved comfort over rougher pavement.

How the Sierra stacks up to towing or acceleration tests hinges on the engine under the hood. We prefer the optional 6.2-liter V8 to the 5.3-liter that we last tested in the Silverado Trail Boss. The 5.3L offers adequate passing power but the 6.2L makes you feel like the true king of the road. Most buyers will never take the luxurious Denali trim on a vigorous trail, but the AT4 offers greater off-road performance without losing all of the luxury found in the Denali. Regardless of engine or trim level, the GMC Sierra is among the most enjoyable full-size trucks to drive.

2020 Sierra 1500 Interior

2020 Sierra 1500 Trunk and Cargo Space

Warranty

BasicDrivetrainRust-ThroughCorrosionRoadside AssistanceMaintenance NoteDrivetrain NoteRoadside Assistance Note
3 Years / 36,000 Miles5 Years / 60,000 Miles6 Years / 100,000 Miles3 Years / 36,000 Miles5 Years / 60,000 Miles1 Year/1 VisitHD Duramax Diesel: 5 Years/100,000 Miles; Qualified Fleet Purchases: 5 Years/100,000 MilesHD Duramax Diesel: 5 Years/100,000 Miles; Qualified Fleet Purchases: 5 Years/100,000 Miles


US NHTSA Crash Test Result

Overall RatingFrontal Barrier Crash RatingSide Crash RatingRollover Rating
4/54/55/54/5


Verdict: Is the 2020 GMC Sierra 1500 A Good Truck?

Compared to the polarizing styling of the Chevrolet Silverado, the GMC's classic design should appeal to truck buyers who are hesitant to change. The Sierra's driving characteristics still feel top-notch thanks to one of the best available engine/transmission combinations in the segment (the 6.2L V8 and 10-speed auto). There are more cushy options available, but old school truck fans may prefer the Sierra's old-school approach. For those who can live with far less than the Denali trim's leather seats and power running boards, GMC still offers a wide range of trim and configurations so you can build the perfect truck for your needs.

We are glad that GMC left a bit of old school feel in the Sierra, but the truck could still do with a major refresh on the interior. Ford and Ram have GMC completely outclassed in this area, but judging from the recently-unveiled Yukon SUV, the company's designers still understand how to make a class-leading interior. Look for a 2021 or 2022 model to receive major enhancements in the cabin. If the powertrain is more important to you, then we still recommend the Sierra 1500, especially with the 6.2L V8. But if you also want your truck to be a comfortable family vehicle, there might be better options available.

What GMC Sierra 1500 Model Should I Buy?

With such a wide range contrasting starkly between lower and higher trims, it's easy to get caught up in the finer details and in turn, end up being stuck on which one is best. For us, it's the mid-level SLT. It adds all of the right bits that are notably absent from lower trims, but avoids the higher price tags of the AT4 and the Denali. We'd recommend adding the Driver Alert Package II for an additional $1,095, which adds adaptive cruise control, a safety alert seat, and more. Should you be in the market for a higher-priced truck, we think the AT4 offers most of the important luxury features found in the Denali but adds the benefit of off-road capability.

2020 GMC Sierra 1500 Comparisons

2020 GMC Sierra 1500 vs Ford F-150

Both of these trucks excel at what matters most to potential purchasers. These merits include towing and power as well as the ability to proudly say that you own one. While they offer some similar qualities like a passion for low-end torque, a few things will seal the deal for different shoppers. Both offer a range of different configurations including fleet-focused versions and different bed and cab sizes. If you're after some more modern tech, the Sierra would be the better choice. It also leads the pack when we consider the space in the front. That being said, the F-150 beats the Sierra with a lower asking price. The Ford also takes the cake with the ability to tow around 1,000 pounds more. Essentially, the Sierra 1500 is better as an everyday truck for the family, and the Ford is the optimal choice if you're looking for a workhorse at an affordable price.

2020 GMC Sierra 1500 vs Chevrolet Silverado 1500

These GM relatives share plenty of similarities, and they're almost identical in terms of their powertrains and configurations. For the exterior, the Chevy has a face that is slightly more striking, but both have bold front ends. Their interiors are also similar, but the Sierra offers better options that are nonexistent on the Chevy, which makes the GMC a better choice for shoppers that prioritize a premium feel. That being said, at base level, they are quite similar and share the same infotainment system and hard plastics. The Silverado makes the most sense for work-spec shoppers, while the GMC suits those looking for a more deluxe experience.