2021 GMC Sierra 1500 vs. 2020 GMC Sierra 3500HD | NewCars.com

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2021 GMC Sierra 1500 vs. 2020 GMC Sierra 3500HD Review

Picture of the 2021 GMC Sierra 1500

2021 GMC
Sierra 1500

MSRP*: $30,100 to $59,600
See details & photos

Find Your Best Price Today!

Picture of the 2020 GMC Sierra 3500HD

2020 GMC
Sierra 3500HD

MSRP*: $37,000 to $66,900
See details & photos

Find Your Best Price Today!

Invoice* $28,926 to $56,084 $35,002 to $62,618
MPG - City 14 - 22 MPG Info not available
MPG - Hwy 20 - 26 MPG Info not available
Seating Capacity 3 - 6 seats 3 - 6 seats
Cargo Space 62.9 - 89.1 ft3 83.5 ft3
Engine Inline-4, Inline-6, V-6, V-8 V-8
Transmission Auto Manual Automatic
Drivetrain Four-wheel, Rear-wheel Four-wheel, Rear-wheel
Horsepower 310 - 420 hp 445 hp
Towing Capacity 8,900 - 11,300 lbs 14,500 - 20,000 lbs
Exterior Length 229.6 - 241.2 in 235.5 - 266.0 in
Exterior Width 81.2 in 81.8 - 96.6 in
Leg Room Front 44.5 in
Rear 35.2 - 43.4 in
Front 44.5 in
Rear 35.2 - 43.4 in
Head Room Front 43.0 - 43.1 in
Rear 39.9 - 40.1 in
Front 43.0 - 43.1 in
Rear 39.9 - 40.1 in
Basic Warranty 3 years/36,000 miles 3 years/36,000 miles
Overall Safety Rating** **** Info not available
Frontal Crash Rating** **** Info not available
Side Crash Rating** ***** Info not available

**Vehicle crash and safety data is provided by NHTSA, the National Highway Traffic Safety Administration. The NHTSA testing was established by Congress to reduce highway deaths and injuries.

*MSRP and Invoice prices displayed are for educational purposes only, do not reflect the actual selling price of a particular vehicle, and do not include applicable gas taxes or destination charges.

Comparison Review

Comfort
The GMC Sierra 1500 offers passengers in its extended cab about the same head- and legroom as the GMC Sierra 3500HD. As far as headroom and legroom go, there's not much difference between the GMC Sierra 1500 and the GMC Sierra 3500HD.

Cost
There are a lot of factors to consider when calculating the overall cost of a vehicle. The main consideration is Manufacturer's Suggested Retail Price (MSRP). When looking only at MSRP, the GMC Sierra 1500 will have less of an impact on your bank account than the GMC Sierra 3500HD. The destination charge is a standard charge for transporting the vehicle to the dealer from where it's built. The GMC Sierra 1500 will cost more in transportation costs than the GMC Sierra 3500HD.

Dimensions
Since the GMC Sierra 1500 is much slimmer than the GMC Sierra 3500HD, it'll be much easier to find a wide enough space in a crowded parking lot. If you go with the GMC Sierra 1500, you'll have a much easier time finding a large enough space to park than you will with the GMC Sierra 3500HD.

Handling
The GMC Sierra 1500 has a significantly smaller turning radius than the GMC Sierra 3500HD, allowing you to more easily maneuver in and out of tight spots.

Performance
In terms of towing capacity, the GMC Sierra 3500HD is clearly the choice over the GMC Sierra 1500 for pulling heavy loads. When it comes to horsepower, the GMC Sierra 1500 is clearly outclassed by the GMC Sierra 3500HD.

Powertrain
The GMC Sierra 1500 offers much less torque than the GMC Sierra 3500HD, which generally means that it won't feel as fast or powerful.

Utility
In terms of seating, you'll be able to fit the same number of people in the GMC Sierra 1500 as you will the GMC Sierra 3500HD. The GMC Sierra 3500HD has a lot more cargo capacity for hauling lumber or gardening supplies than the GMC Sierra 1500.

Warranty
The GMC Sierra 1500 comes with essentially the same basic warranty as the GMC Sierra 3500HD.