2021 GMC Sierra 1500 vs 2020 GMC Sierra 1500
Overview | |
MSRP$29,600 | MSRP$30,100 |
Listings2329 | Listings3508 |
Ratings & Reviews | |
User Reviews | User Reviews |
Expert reviews8.3 out of 10 | Expert reviews5.7 out of 10 |
Pros
Cons
| Pros
Cons
|
2020 GMC Sierra 1500 Reviews SummaryIt’s no surprise that trucks have improved and evolved over the years. After all, think about an average sedan from the early 1980s compared with a modern 2020 vehicle. Yet because pickup trucks are largely confined to a common shape, many shoppers are still surprised to see how nice they have become. This is especially true if your memory of trucks includes a vinyl bench seat. Modern trucks heavily incorporate utility-minded innovations. Cargo-management tools, side steps, and bed steps make for a more useful vehicle. Under the hood, turbocharging has made V6 and even 4-cylinder engines usable, delivering the power of the larger engines they aim to supplant. And finally, cabins have become nicer and more comfortable than previously imagined for a pickup. This evolution speaks to how trucks get used as family vehicles that can also do work. There are the work trucks, but there are also trucks like the 2020 GMC Sierra 1500, which has many of the creature comforts of SUVs and crossovers. It says “I want a truck, but I could probably be used as a minivan.” But somewhere in the middle sits Sierra's AT4 trim. It’s comfortable, sure, but it’s also capable. Does that make it a good fit for both the worksite and the daily commute? | |
2021 GMC Sierra 1500 Reviews SummaryGMC is the “professional grade” brand at General Motors, but that’s just marketing mumbo jumbo. The 2021 GMC Sierra 1500 is the same thing as a Chevrolet Silverado 1500, but with different styling and a handful of unique features, like an optional carbon-fiber composite cargo bed. This year, GMC makes several changes to its full-size light-duty pickup truck, none of them earth-shattering. This remains a fundamentally appealing truck in need of attention to the details. | |
Popular Features & Specs | |
Engine4.3L 285 hp V6 Flex Fuel Vehicle | Engine4.3L 285 hp V6 Flex Fuel Vehicle |
Drive Train4X2 | Drive Train4X2 |
Seating Capacity3 | Seating Capacity3 |
MPG City16 | MPG City16 |
MPG Highway21 | MPG Highway21 |
Engine | |
Engine Name4.3L 285 hp V6 Flex Fuel Vehicle | Engine Name4.3L 285 hp V6 Flex Fuel Vehicle |
Drivetrain4X2 | Drivetrain4X2 |
Fuel Economy | |
MPG City16 | MPG City16 |
MPG Highway21 | MPG Highway21 |
Interior | |
Seating Capacity3 | Seating Capacity3 |
Safety | |
Front Crash Overall4 | Front Crash Overall4 |
Side Crash Overall5 | Side Crash Overall5 |
Dimensions & Capacity | |
Bed Length98.2 in | Bed Length98.2 in |
Curb Weight4520 lbs | Curb Weight4520 lbs |
Height75.6 in | Height75.6 in |
Length229.6 in | Length229.6 in |
Width81.2 in | Width81.2 in |
Wheelbase139.6 in | Wheelbase139.6 in |
Maximum Payload2240 lbs | Maximum Payload2250 lbs |
Number of doors2 | Number of doors2 |
Maximum Towing Capacity10000 lbs | Maximum Towing Capacity9900 lbs |
Standard Towing Capacity7900 lbs | Standard Towing Capacity7800 lbs |
Overview | ||
MSRP | $29,600 | $30,100 |
Listings | ||
Ratings & Reviews | ||
User reviews | ||
Expert reviews | 8.3 out of 10Read full review | 5.7 out of 10Read full review |
Pros & cons | Pros
Cons
| Pros
Cons
|
Summary | It’s no surprise that trucks have improved and evolved over the years. After all, think about an average sedan from the early 1980s compared with a modern 2020 vehicle. Yet because pickup trucks are largely confined to a common shape, many shoppers are still surprised to see how nice they have become. This is especially true if your memory of trucks includes a vinyl bench seat. Modern trucks heavily incorporate utility-minded innovations. Cargo-management tools, side steps, and bed steps make for a more useful vehicle. Under the hood, turbocharging has made V6 and even 4-cylinder engines usable, delivering the power of the larger engines they aim to supplant. And finally, cabins have become nicer and more comfortable than previously imagined for a pickup. This evolution speaks to how trucks get used as family vehicles that can also do work. There are the work trucks, but there are also trucks like the 2020 GMC Sierra 1500, which has many of the creature comforts of SUVs and crossovers. It says “I want a truck, but I could probably be used as a minivan.” But somewhere in the middle sits Sierra's AT4 trim. It’s comfortable, sure, but it’s also capable. Does that make it a good fit for both the worksite and the daily commute? | GMC is the “professional grade” brand at General Motors, but that’s just marketing mumbo jumbo. The 2021 GMC Sierra 1500 is the same thing as a Chevrolet Silverado 1500, but with different styling and a handful of unique features, like an optional carbon-fiber composite cargo bed. This year, GMC makes several changes to its full-size light-duty pickup truck, none of them earth-shattering. This remains a fundamentally appealing truck in need of attention to the details. |
Video | ||
Popular Features & Specs | ||
Engine | 4.3L 285 hp V6 Flex Fuel Vehicle | 4.3L 285 hp V6 Flex Fuel Vehicle |
Drive Train | 4X2 | 4X2 |
Seating Capacity | 3 | 3 |
MPG City | 16 | 16 |
MPG Highway | 21 | 21 |
Engine | ||
Engine Name | 4.3L 285 hp V6 Flex Fuel Vehicle | 4.3L 285 hp V6 Flex Fuel Vehicle |
Drivetrain | 4X2 | 4X2 |
Fuel Economy | ||
MPG City | 16 | 16 |
MPG Highway | 21 | 21 |
Interior | ||
Seating Capacity | 3 | 3 |
Safety | ||
Front Crash Overall | 4 | 4 |
Side Crash Overall | 5 | 5 |
Dimensions & Capacity | ||
Bed Length | 98.2 in | 98.2 in |
Curb Weight | 4520 lbs | 4520 lbs |
Height | 75.6 in | 75.6 in |
Length | 229.6 in | 229.6 in |
Width | 81.2 in | 81.2 in |
Wheelbase | 139.6 in | 139.6 in |
Maximum Payload | 2240 lbs | 2250 lbs |
Number of doors | 2 | 2 |
Maximum Towing Capacity | 10000 lbs | 9900 lbs |
Standard Towing Capacity | 7900 lbs | 7800 lbs |









CarGurus highlights

The 2020 and 2021 GMC Sierra 1500s are very similar trucks, but the competition got stiffer in 2021. As such, according to CarGurus experts, the overall rating for the 2020 GMC Sierra 1500 is 8.3 out of 10, while the 2021 GMC Sierra 1500 scores 5.7 out of 10. However, either one is a good choice for consumers looking for a reliable and versatile truck with strong performance and ample cargo capacity.
Choose the 2021 GMC Sierra 1500 if:
- You desire a more modern and upscale look in a truck.
- You value advanced safety features and technology options.
- You are willing to invest in the latest conveniences for a luxurious driving experience.
Choose the 2020 GMC Sierra 1500 if:
- You prioritize a classic truck design with timeless appeal.
- You seek a variety of engine options for different needs.
- You prefer a more cost-effective option with a proven track record.
CarGurus highlights

The 2020 and 2021 GMC Sierra 1500s are very similar trucks, but the competition got stiffer in 2021. As such, according to CarGurus experts, the overall rating for the 2020 GMC Sierra 1500 is 8.3 out of 10, while the 2021 GMC Sierra 1500 scores 5.7 out of 10. However, either one is a good choice for consumers looking for a reliable and versatile truck with strong performance and ample cargo capacity.
Choose the 2021 GMC Sierra 1500 if:
Shop Now- You desire a more modern and upscale look in a truck.
- You value advanced safety features and technology options.
- You are willing to invest in the latest conveniences for a luxurious driving experience.
Choose the 2020 GMC Sierra 1500 if:
Shop Now- You prioritize a classic truck design with timeless appeal.
- You seek a variety of engine options for different needs.
- You prefer a more cost-effective option with a proven track record.

By: CarGurus + AI
At CarGurus, our team of experienced automotive writers remain at the heart of our content operation, conducting hands-on car tests and writing insightful guides that are backed by years of industry experience. To complement this, we are harnessing AI to make our content offering more diverse and more helpful to shoppers than ever. To achieve this, our AI systems are based exclusively on CarGurus content, ratings and data, so that what we produce is both unique to CarGurus, and uniquely helpful to car shoppers.






































