The GMC Sierra has always been the first choice of truck enthusiasts. Mechanically, the Sierra shares a hell lot with the Chevy Silverado but the GMC is marketed as a premium alternative to the chevy truck.
For the 2020 model, the GMC Sierra comes with an updated fascia and some redesigned interiors to stand out with its own identity. A wide range of engines are on offer including a V8 engine and the truck is also offered with an off-roading package.
Vehicle images are guides only and may not reflect the model's exact specifications/features– exact specifications/features should be confirmed with the seller.
One of the most iconic and easily recognizable trucks, the GMC Sierra series has withstood the test of time and is as of today one of the most selling trucks that the American market has ever seen. The truck is a jack of all trades kind of deal and does not let down on any front.
For the 2020 model, the GMC Sierra comes with an updated fascia and some redesigned interiors to stand out with its own identity. A wide range of engines are on offer including a V8 engine and the truck is also offered with an off-roading package.
2020 GMC Sierra 1500 Regular Cab Front View
2020 GMC Sierra 1500 Regular Cab Rear View
7.5/10 Features
9.0/10 Engine and Performance
8.0/10 Fuel Economy
7.5/10 Interior
7.9/10 Exterior
8.1/10 Safety
7.5/10 Competition
8.2/10 Final Verdict
2020 GMC Sierra 1500 Features
7.5/10
The 2020 GMC Sierra 1500 RegularCab is offered in 1 basic trim. The base trim sports a price tag of $28.205 and is powered by a 4.3L Ecotech3 V6 engine. The set of standard features include HID headlamps, 3.5-inch monochromatic display amongst other features.
Trim
Sierra 1500 Regular Cab LB (4.3L 6cyl 6A)
Sierra 1500 Regular Cab LB (5.3L 8cyl 6A)
MSRP(2WD)
$31,195
$32,590
MSRP(4wd)
$35,795
$37,190
Features
headlamps, High-Intensity Discharge (HID), bifunctional with GMC LED signature
Adds/Upgrades to Sierra 1500 Regular Cab LB (4.3L 6cyl 6A)
DRIVER INFORMATION CENTER With 3.5" diagonal monochromatic display.
Steering column tilt-wheel, manual operation
Single-zone manual air conditioning
Graphite-colored rubberized-vinyl for floor covering
Rearview mirror With manual day/night adjustment
What do we recommend?
The decision of picking up the rear-wheel-drive version or the 4X4 version totally depends on the usage of the user. For all-weather drivability and off-roading, 4WD is the one to go but if hauling cargo is the main motive, the RWD version might sound more attractive as it has a higher towing capacity.
2020 GMC Sierra 1500 Engine and Performance
9.0/10
The Sierra 1500 has a big lump of a V6 upfront. The engine, on paper, does sound a bit underpowered but out in the real world, this engine pulls. And it pulls hard. Right from down low in the rev range, the V6 feels super torquey. Mated to a 6-speed conventional automatic transmission, hauling this massive truck uphill is not an issue either. The shifts come in quickly and effortlessly and for a powertrain of the base truck, it feels quite refined and well-calibrated.
Models
GMC Sierra 1500 Regularcab
Ford-150 XL RegularCab
Chevrolet Silverado-1500 LS
MSRP
$31,195
$28,795
$28,300
Engine
4.3L 6cyl
3.5L 6cyl
4.3L 6cyl
Transmission
6-speed automatic
6-speed Automatic
6-speed Automatic
Horsepower
285 hp
282 hp
285 hp
Torque
305 lb-ft
253 lb-ft
305 lb-ft
In comparison with rivals, the GMC Sierra 1500 sits at par with the Chevy Silverado to take the top spot when it comes to both engine capacity and performance as they both share the same engine and the gearbox. Mechanically and out on the road, both these trucks feel quite similar to each other in terms of outright performance.
How fast is the GMC Sierra 1500 off the line?
There is no getting away the fact that 2020 GMC Sierra 1500 is one heavy truck. For the amount of heft, this thing has to lug around, it accelerates fairly swiftly. From a standstill, the truck picks up the pace in a linear fashion with the gearbox assisting the engine all the way. With only six speeds to play with, the progress does feel a bit slow.
2020 GMC Sierra 1500 Regular Cab 0-60 MPH in just 7.1 sec
Nonetheless, outright acceleration is respectable for this base-spec pick-up truck.
Models
GMC Sierra 1500 Regularcab
Ford-150 XL RegularCab
Chevrolet Silverado-1500 LS
0-60 MPH
7.1
7.3
7.0
Quarter mile
15.2
N/A
15.2
Engine
4.3L V6
3.5L V6
4.3L V6
On paper, all of these trucks are equally matched but in flesh, the Ford F-150 feels the light on its feet and a bit more agile compared to the Chevy and the GMC.
What’s the handling like?
The 2020 GMC Sierra handles like a much smaller vehicle than it really is. Out on a straight and wide road, the truck feels stable and safe at high speeds. Encounter a set of twisties? Not an issue for the GMC as the suspension is not overly soft and keeps the body control under check. That being said, push this massive beast a bit too hard and the inert truck personality steps out and it rolls all over the place which is something which is expected from a giant like the GMC Sierra.
What about the braking performance?
Under heavy braking, the GMC Sierra holds its own. The brakes are nice and predictable coupled with a linear and progressive brake pedal which is easy to modulate in traffic. With that said, the pedal travel feels a bit too long and it takes time to get used to it.
2020 GMC Sierra 1500 Regular Cab Has Front brake is 13.5 in.
Model
GMC Sierra 1500
Ford F-150
Chevrolet Silverado 1500
Brake Front (in.)
13.5
13.8
13.5
Brake Rear (in.)
13.6
13.7
13.6
Curb Weight (lbs.)
4520
4177
4520
60-0 MPH (ft.)
128
121
128
Being the lightest of the lot, the 2020 Ford F-150 feels absolutely phenomenal under hard braking and as a result, it stops in the shortest distance. As expected, the 2020 GMC Sierra 1500 and the Chevrolet Silverado 1500 performed identically as they are both based on the same platform and share the same mechanicals as well.
How much towing power does the GMC Sierra 1500 Regular Cab has?
The GMC Sierra 1500 is an outright beast in the sense it can haul almost twice its body weight and this is just the base pick-up with a V6. that being said, the rear powered Sierra is rated above the AWD version in terms of outright towing capacity which is down to 9800 pounds.
Model
Chevrolet Silverado 1500
Ford F-150
GMC Sierra 1500
Towing Capacity (lbs)
10000
12100
10000
The champ of the towing world is the Ford F-150, with a maxing towing load of 12,100 pounds. The Silverado and the Sierra are the same here too, with a towing capacity of 10000 pounds.
2020 GMC Sierra 1500 Fuel Economy
8.0/10
Keeping in mind that GMC Sierra tips the scale at more than 4000 pounds, it performed fairly well in our fuel economy tests. The V6 under the giant hood of the Sierra is clever than most V6 engines on sale. It gets an intelligent fuel management system that shuts off three cylinders when cruising out on the motorway thereby reducing the fuel consumption.
Model
GMC Sierra 1500
Ford F-150
Chevrolet Silverado 1500
MPG (city)
16
19
16
MPG (highway)
21
25
21
MPG (combined)
17
22
17
Fuel Tank Capacity (Gal)
28
23
28
Range (City/Highway)
448/588
437/575
448/588
The Sierra and the Silverado share the same exact fuel economy rating. The king of the hill here is the Ford F-150, with a combined average of 22 mpg, considerably higher than the others in the class. Where the F-150 lacks is the range available due to its smaller fuel tank.
2020 GMC Sierra 1500 Interior
7.5/10
The GMC Sierra is massive inside and out. It gets a square-ish looking dashboard, it’s upright and sports equally big air-con vents which match the whole vibe of the pickup truck. Most parts of the dashboard and the doors are covered with hard plastics and feel downright cheap which is expected from a base regular cab truck.
2020 GMC Sierra 1500 Regular Cab Seats
The seats are humongous and high on comfort. They are snug and long distances should not be a problem at all. For absolute comfort, while grand touring, the Expedition gets a truly massive and one of the biggest armrests in the history of armrests and underneath gets cubby storage which might be able to fit even an i-pad.
How big is the cargo bed in the Sierra 1500 Regular Cab?
The bed in the back of the 2020 GMC Sierra regular cab is downright massive. GMC claims that it can carry 20% more cargo than its competitors. For better accessibility, there are grab handles are incorporated in the design itself.
Model
GMC Sierra 1500
Ford F-150
Chevrolet Silverado 1500
Cargo Volume with rear seats up (ft.3)
89.1
77.4
89.1
Cargo Volume with rear seats down (ft.3)
N/A
N/A
N/A
Three cargo tow hooks are present in the back and each of them can bear up to 500 pounds which is super impressive. Ford-F150 falls short of cargo space in its rear bed and thus is not the most practical truck of the lot.
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Exterior
7.9/10
The 2020 GMC Sierra regular cab is at the bottom of the Sierra trim levels and lacks the flair on the outside. It is devoid of any sort of chrome treatment except for the chrome strip around the grille. The lights are not fancy, in fact, the headlight cluster houses HID lights and not the LEDs.
2020 GMC Sierra 1500 Regular Cab Front View
At the side, the regular cab gets steel rims that look retro and have an old-school charm to them and feels like a breath of fresh air in the sea of similar-looking diamond cut alloys. These wheels do look rugged and can actually go anywhere. The GMC Sierra is a total workhorse and that’s exactly what it looks like on the outside.
Model
GMC Sierra 1500
Ford F-150
Chevrolet Silverado 1500
Curb weight (lbs.)
4520
4177
4520
Length(in)
229.5
227.9
229.6
Width(in)
81.1
79.9
81.2
Height(in)
75.6
75.1
75.6
Ground clearance (in)
8.2
8.6
8.1
Wheelbase (in)
139.6
141
139.6
Track width (in) F/R
N/A
N/A
N/A
Both the GMC and the Chevy trucks are exactly identical in terms of dimensions. Both share the same platform and the powertrain as well. The Ford F-150 is a much mighter truck in comparison and has long overhangs which makes it that much longer than the GM trucks. However, they all have tons and tons of street presence.
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Safety
8.1/10
The GMC Sierra 1500 has not been crash-tested by any major crash-testing agencies yet. The set of standard safety features includes dual-stage frontal airbags, lane assist, and forward collision alert and tire pressure monitoring system amongst others. There is definitely a lack of active safety features on the Sierra 1500. Some other Safety features are as follows:
4 Wheel ABS
Engine Immobilizer
Post-Collision Safety Systems
Stability Control
Emergency Braking Assist
2020 GMC Sierra 1500 Competition
7.5/10
GMC Sierra 1500 Regular Cab vs Ford F-150 regular cab
Both of the trucks have their own quirks and features. The Ford F-150 excels in some regards and lacks in others. The F-150 is lighter by quite a margin, has a more powerful engine, can haul more cargo and has better interiors. On the other hand, the 2020 GMC Sierra is that much more practical than the Ford as it has a bigger bed behind the seats and more room inside the cabin. They both are quite closely matched.
2020 Ford F-150 Regular cab
GMC Sierra 1500 Regular Cab vs Chevrolet Silverado 1500 Regular cab
The GMC and the Chevy share the same engine, gearbox, chassis and what not. Even dimensionally both these trucks are exactly identical to one another. The only deciding factor can be the interiors that feel a tad bit better on the GMC as the Sierra is positioned as a luxury counterpart of the Silverado.
2020 Silverado 1500 Regular cab
2020 GMC Sierra 1500 Final Verdict
8.2/10
The GMC Sierra 1500 is a very capable and trustworthy truck that has proved its mettle over the many years of service that it has endured. With a lot of experience under its belt, General Motor Twin with better interiors is a potential candidate for the throne of hauling king.
An amazing truck through and through. Handling is great especially for a truck, has good mpg numbers, and most important of all it is very comfortable and smooth to drive.
8/10
Features
7/10
Interior
8/10
Design
8/10
Safety
8/10
Reliability
7/10
Deal Value
10/10
Dealer Review
CM
Chris A. Murphy
2020 GMC Sierra 1500
2dr Regular Cab LB (4.3L 6cyl 6A)
10
User Overall Rating
Posted On: August 12, 2020
2020 GMC Sierra
Pros - Looks, handling, interior
Cons - Customer support, mpg compared to previous models
Overall Review
10 /10 Overall Rating
Drives just like a truck, and gas mileage is worse than a truck. So, yes, not a good truck when it comes to the driving experience.
7/10
Features
7/10
Interior
7/10
Design
7/10
Safety
7/10
Reliability
7/10
Deal Value
9/10
Dealer Review
CH
Chester Y. Hein
2020 GMC Sierra 1500
2dr Regular Cab LB (5.3L 8cyl 6A)
9
User Overall Rating
Posted On: August 10, 2020
No attention to detail
Pros - DRL, heated mirrors, keyless entry
Cons - Hard plastic center console, slick steering wheel, rocker panel
Overall Review
9 /10 Overall Rating
The pricing of Sierra is quite competitive and judging with respect to the price, it's the best truck to have in the garage. Comes handy because of the space and bed for daily drivers like me.
An amazing truck through and through. Handling is great especially for a truck, has good mpg numbers, and most important of all it is very comfortable and smooth to drive.
by Donald S. Powell
10
User Overall Rating
2020 GMC Sierra
Drives just like a truck, and gas mileage is worse than a truck. So, yes, not a good truck when it comes to the driving experience.
by Chris A. Murphy
9
User Overall Rating
No attention to detail
The pricing of Sierra is quite competitive and judging with respect to the price, it's the best truck to have in the garage. Comes handy because of the space and bed for daily drivers like me.
by Chester Y. Hein
10
User Overall Rating
Loaded
So many convenience features to make daily driving easy. A good amount of practicality depicts right from the design and the way it drives i.e, smooth. I can’t feel the difference between my Sonic and Sierra 1500 in terms of driving dynamics.
