2018 GMC Sierra 1500


Ranked #6 in Midsize Pickup-truck

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Starting MSRP 

$29,000 - $39,900

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Key Spec of 2018 GMC Sierra 1500
fuel economy


fuel type

Flex-fuel (unleaded/e85)


285 hp @ 5300 rpm

basic warranty

3 yr./ 36000 mi.

ProsConsWhat's New

Superb towing capacity

Quirky off-center driving position

The 2018 Sierra 1500 adds eAssist mild hybrid system.

V8 engine offers good performance

Handling not as good as some rivals

Rear view camera and a 7-inch infotainment system is now standard.

Exquisitely built interiors

Cabin lacks fit and finish level

Comfortable and spacious cabin

2018 GMC Sierra 1500 Price, Review, Ratings and Pictures

Updated on: December 28, 2021

Nathan Dyer's image
Nathan Dyer 

Senior Editor

The full-size Pickup truck market has plenty of versatile options. The 2018 GMC Sierra 1500 is one of the best pickups with class-leading tow-capacity, impressive payload rating, powerful V8 engine option, luxurious interiors in higher trims, and excellent build quality. Those looking for a utilitarian truck will appreciate the $29,000 starting price for the 2018 Sierra 1500 Regular Cab.

2018 GMC Sierra 1500

If you want the capability of a modern full-size pickup truck but want something a bit classier, the 2018 Sierra 1500 will impress you. Starting with the exterior that's sleeker looking than any other pick-up in the market, the classy feeling continues all the way to the tastefully built and assembled interiors which also happen to be the most spacious in the segment.

2018 GMC Sierra 1500 Latest Updates

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  • Oct' 10, 2022 : The Most Advanced 2024 GMC Sierra HD - The Denali Ultimate Read More »
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Over All Rating


Out of 10

Notable Rankings

Pictures & Videos


Base$29,000 onwards

  • 7-Inch touchscreen interface
  • Air conditioning
  • Automatic xenon headlamps
  • Power locks
  • Power windows
  • Rearview camera
  • Six-Speaker sound system
  • Tilt-Only steering wheel

SLE$35,700 onwards

  • 17-Inch alloy wheels
  • 8-Inch touchscreen display
  • Damped tailgate
  • Leather-Wrapped steering wheel

Used GMC Sierra 1500 For Sale

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2019 GMC Sierra 1500 Crew Cab

3dr Crew Cab 5.75 ft. SB 4WD (4.3L 6cyl 6A)

Est. $407/mo
Excellent Deal
$6,174 Below market
RMV: $36,172
Rockford, IL
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2017 GMC Sierra 1500 Double Cab

4dr Double Cab 6.5 ft. SB (5.3L 8cyl 355 hp 6AM)

Est. $302/mo
Excellent Deal
$4,551 Below market
RMV: $26,849
Orlando, FL
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2017 GMC Sierra 1500 SLT Crew Cab

SLT 3dr Crew Cab 5.75 ft. SB (5.3L 8cyl 6A)

Est. $359/mo
Excellent Deal
$5,442 Below market
RMV: $31,933
Boerne, TX
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2018 GMC Sierra 1500 SLT Crew Cab

SLT 3dr Crew Cab 5.75 ft. SB 4WD (5.3L 8cyl 6A)

Est. $407/mo
Excellent Deal
$6,056 Below market
RMV: $36,051
Manchester, CT
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2018 GMC Sierra 1500 SLT Crew Cab

SLT 3dr Crew Cab 5.75 ft. SB (5.3L 8cyl 6A)

Est. $379/mo
Excellent Deal
$5,579 Below market
RMV: $33,567
Alvin, TX
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2018 GMC Sierra 1500

2dr Regular Cab 6.5 ft. LB (5.3L 355 hp 8cyl 6AM)

Est. $304/mo
Excellent Deal
$4,400 Below market
RMV: $26,848
Sacramento, CA
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2017 GMC Sierra 1500 Denali Crew Cab

Denali 3dr Crew Cab 5.75 ft. SB 4WD (5.3L 8cyl 8A)

Est. $473/mo
Excellent Deal
$6,725 Below market
RMV: $41,602
Klamath Falls, OR
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2018 GMC Sierra 1500 SLE

SLE 2dr Regular Cab 5.8 ft. SB 4WD (4.3L 6cyl 6A)

Est. $436/mo
Excellent Deal
$6,168 Below market
RMV: $38,343
San Angelo, TX
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2017 GMC Sierra 1500 SLT Crew Cab

SLT 3dr Crew Cab 5.75 ft. SB 4WD (5.3L 8cyl 6A)

Est. $319/mo
Excellent Deal
$4,522 Below market
RMV: $28,022
Wyoming, MI
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Colors and Styles

Build Car
Cardinal Red

Expert Review, Pricing Analysis and Buying Guide

The 2018 GMC Sierra 1500 Regular Cab comes with a rearview camera and 7-inch infotainment as standard this time. Engine options include a base 4.3-Liter V6 and a throaty 5.3-Liter V8 available with a 6-speed or 8-speed automatic. 4WD is available on all trims and tow rating extends to the segment beating 12,500 pounds. While base Sierra 1500 gets optional vinyl interiors that can be hosed down after a hard day's work, higher trims get exquisite leather upholstery and even a wireless charging pad as an option. That said, the 2018 Sierra 1500 rivals the likes of Ford F-150 Regular Cab, RAM 1500 Regular Cab, and its own cousin the Chevrolet Silverado 1500 Regular Cab.


The 2018 GMC Sierra 1500 pickup truck comes in three cab styles and three bed lengths. The cab styles include Regular Cab, Double Cab, and Crew Cab while the bed length includes standard bed (6'7"), short bed (5'9"), and extended bed (8'). For this review, we will talk about the Regular Cab available in two bed lengths standard and extended. The Sierra 1500 Regular Cab is available in only two trims base and SLE with the base trim starting at $29,000 and the SLE trim starting at $35,700. Both the trims in their standard form are equipped with a 4.3-Liter V6 engine while a 5.3-Liter V8 engine is available as an option on both the trims.

The standard features available on the respective trims are covered in the tables while GMC also offers a bunch of optional packages to better equip your truck. For the base trim, you have a Sierra Convenience package that adds LED cargo box lighting, a remote locking tailgate, a 110-volt AC outlet, remote keyless entry, and heated power mirrors. While the base trim with the Elevation edition includes all the above and adds LED foglights, OnStar communications, 20-inch black alloy wheels, and body-color exterior trims.

The SLE trim also gets a couple of packages like the SLE Convenience package that adds a rear window defogger, rear parking sensors, power-adjustable pedals, and a sliding rear window. Going for the Preferred package gets you dual-zone automatic climate control, remote start, power-adjustable driver's seat, etc. While adding the SLE Value package includes all the above with rear locking differential and trailering equipment. That said, standalone options include wireless smartphone charging, leather upholstery, power-adjustable front seats, etc.

Trims Base SLE
MSRP (6'7") (2WD) $29,000 $35,700
MSRP (6'7") (4WD) $32,900 $39,600
MSRP (8'0") (2WD) $29,300 $35,800
MSRP (8'0") (4WD) $33,200 $39,900
Key Features 285 hp, 4.3-Liter V6 EcoTec3 engine Adds or upgrades to 'Base' trim
  17-inch steel wheels 17-inch alloy wheels
  Locking tailgate 8-inch touchscreen
  Automatic xenon headlights Damped tailgate
  7-inch touchscreen w/ six-speaker sound system Leather-wrapped steering wheel
  Rearview Camera  
  Power locks w/ power windows  
  Cruise control  

We Recommend:

We suggest picking the SLE trim and adding the SLE Value package as the base trim not only is barebones but also misses out a lot on the optional package and features list. The SLE trim is priced at under seven grand premium over the base trim but adds a couple of nifty features like the bigger and better infotainment screen, a damped tailgate, and also offers other useful features in the form of packages thus making it the perfect fit for most buyers. 

Engine and Performance

"The powertrain in the Sierra Denali is nothing short of impressive. With 420 hp, 460 lb-ft of torque and an eight-speed transmission, the truck is never short on grunt. But the brakes and the steering show considerably less advancement. " - Edmunds

2018 GMC Sierra 1500 Regular Cab Engine and Transmission

The 2018 GMC Sierra 1500 Regular Cab gets only two engine options while the meatier 6.2-liter V8 is reserved for the Crew Cab and Double Cab Sierra models. The base 4.3-Liter naturally-aspirated V6 delivers 285 hp and 305 lb-ft of torque. It's capable and up for most of the everyday tasks while the available 5.3-Liter naturally-aspirated V8 is much more capable and charismatic but a bit thirstier. The throaty 5.3-Liter naturally-aspirated V8 delivers 355 hp and 383 lb-ft of torque.

2018 GMC Sierra Engine

Importantly, over 300 lb-ft of that kicks in from as low as 2000 rpm thus requiring lesser downshift while puttering around town. With two available throaty and roaring naturally aspirated V6 and V8 both of which offer supreme tractability and slick-shifting 6-speed or 8-speed automatic, the 2018 GMC Sierra 1500 powertrain is hard to fault. This combined with supple suspension and high-speed composure makes the GMC Sierra 1500 an excellent freeway cruiser.

Models 2018 GMC Sierra 1500 2018 Ford F-150 2018 Chevrolet Silverado 1500 2018 Ram 1500
MSRP $29,000 $27,705 $28,300 $27,295
Engine 4.3-Liter V6 3.3-Liter V6 4.3-Liter V6 3.6-Liter V6
Transmission 6-speed automatic 6-speed automatic 6-speed automatic 8-speed automatic
Power 285 hp @ 5300 rpm 290 hp @ 6500 rpm 285 hp @ 5300 rpm 305 hp @ 6400 rpm
Torque 305 lb-ft @ 3900 rpm 265 lb-ft @ 4000 rpm 305 lb-ft @ 3900 rpm 269 lb-ft @ 4175 rpm

In this comparison, the RAM 1500 pickup has the lowest asking price for a V6 that puts out more power than either of the three trucks. While the Sierra 1500 and the Silverado 1500 remain the most torquey among the V6 powered trucks here.

2018 GMC Sierra 1500 Regular Cab Acceleration

With a curb weight that easily exceeds 4,500 pounds, this GMC Sierra 1500 truck needs plenty of grunts to move with purpose. The 2018 Sierra 1500 with the base 4.3-Liter V6 does 0-60 mph in 7.4 seconds and covers a quarter-mile in 15.1 seconds. That's plenty fast for such a hefty vehicle. However, most of the buyers choose the 5.3-Liter V8, and for good reasons. It hits the sweet spot between performance and efficiency with 0-60 mph time of 6.6 seconds.

Models 2018 GMC Sierra 1500 2018 Ford F-150 2018 Chevrolet Silverado 1500 2018 Ram 1500
0-60 MPH (sec) 7.4 sec 6.1 sec 7.4 sec 7.6 sec
Quarter-mile (sec) 15.1 sec 14.7 sec 15.1 sec 15.6 sec
Engine 4.3-Liter V6 3.3-Liter V6 4.3-Liter V6 3.6-Liter V6

In this comparison, the Ford F-150 bolts ahead of the competition clocking the fastest 0-60 mph and quarter-mile timings and beating the Sierra 1500 by 1.3 seconds in the 0-60 mph run and 0.4 seconds in covering the quarter-mile.

2018 GMC Sierra 1500 Regular Cab Ride and Handling

The 2018 GMC Sierra 1500 is a large truck and it doesn't hide it. So don't expect any kind of engaging driving experience. Rather, the electrically assisted steering makes handling this big and capable GMC truck easy. The tractable naturally aspirated engine and good outward visibility further help in negotiating confined city roads. However, the Sierra 1500 hates curvy roads which is a bummer as some rival trucks offer better handling in such situations. All the models in the GMC Sierra come with optional 4WD. To up the rough road capability, locking differentials are also on offer.

2018 GMC Sierra Driving

The Sierra 1500 when well equipped can handle some moderately tricky terrain without breaking a sweat. Like any truck with leaf-spring rear suspension, the 2018 Sierra 1500 has a somewhat harsh ride especially when the bed is lightly loaded. Resist the temptation to get those flashy 20 or 22-inch wheels - as they make the matter worse. If you are very particular about ride quality, check out the air-suspension-equipped Ram 1500.

2018 GMC Sierra 1500 Regular Cab Braking

The 2018 GMC Sierra 1500 gets 13-inch brake rotors up-front and 13.6-inch brake rotors at the back. These brakes are capable enough to bring this over 4,500 pounds pickup to stop from 60 mph in just 124 feet.

2018 GMC Sierra Brakes

That said, the hefty curb weight of the Sierra 1500 imposes huge stress on the brakes. After repeated stops, the brakes fade gets pronounced- an issue not experienced in the rivals like the F-150.

Model 2018 GMC Sierra 1500 2018 Ford F-150 2018 Chevrolet Silverado 1500 2018 Ram 1500
Brake Front(in) 13.0 13.8 13.0 13.2
Brake Rear(in) 13.6 13.7 13.6 13.8
Curb weight(lbs) 4515 4069 4515 4520
60-0 MPH (ft.) 124 121 124 123

The braking distance of the Sierra is comparable to the Silverado and Ram 1500. However, the Ford F-150 weighing almost 500 pounds less than the Sierra thanks to its aluminum construction posts the best in class braking performance.

2018 GMC Sierra 1500 Regular Cab Towing and Payload Capacity

The 2018 GMC Sierra 1500 and its corporate cousin - the Silverado 1500 are the huskiest pullers among full-size trucks with a max towing capacity of 12,500 pounds when properly equipped. That kind of capability is not needed by most full-size pickup buyers so it's okay that the Sierra 1500 Regular Cab in its standard form can still tow a healthy 8,900 pounds with a payload capacity of 1,840 pounds.

Model 2018 GMC Sierra 1500 2018 Ford F-150 2018 Chevrolet Silverado 1500 2018 Ram 1500
Towing Capacity (lbs) 8900 5000 8900 5020
Payload Capacity (lbs) 1840 1751 1840 1820

Compared to the rivals the Sierra 1500 and Silverado 1500 offer the best towing and payload capacity followed by the RAM 1500.

Fuel Economy

The most efficient GMC Sierra 1500 is the one equipped with the base 4.3-Liter V6 rated at 18/24/20 mpg for city/highway/combined respectively. That said, the much more capable 5.3-Liter V8 is only marginally thirstier with city mpg rating dropping to 16 mpg and highway rating dropping to 23 mpg thanks to the cylinder cutoff system that shuts off a couple of cylinders under light loads. While dropping a 4WD on the base engine sees a gas mileage of 17 mpg and 22 mpg in the city and on the highway respectively. The same 4WD when opted with the V8 engine sees a marginal 1 mpg drop on the highway.

Model 2018 GMC Sierra 1500 2018 Ford F-150 2018 Chevrolet Silverado 1500 2018 Ram 1500
MPG (city) 18 19 18 17
MPG (highway) 24 25 24 25
MPG (combined) 20 22 20 20
Fuel Capacity (gallons) 26.0 23.0 26.0 26.0

The Ford F-150 due to its lighter curb weight is not only quicker but also fuel-efficient compared to the other pickups. The F-150 beats the Sierra 1500's gas mileage by 1 mpg in the city and on the highway each and by 2 mpg under mixed driving conditions. Although the Sierra 1500 offers 3 gallons bigger fuel tank compared to the F-150 thus exceeding its range even with lesser gas mileage.


"The 2018 GMC Sierra can be loaded up to full-on \Cowboy Cadillac\ level... for a price "- Carconnection

2018 GMC Sierra 1500 Regular Cab Seating and Comfort

The 2018 Sierra 1500 has one of the best interiors among full-size trucks - even in base trim. While it costs a bit more compared to the similar Silverado 1500, it does boast a better fit and finish levels with high-quality materials between the two. There is plenty of in-cabin storage to stow away small items and the massive center console can accommodate your laptop easily when not seating the third passenger.

The GMC Sierra 1500 Regular Cab can seat up to 3-passengers with the front bench seats. The front seats are exceptionally roomy with huge 45.3-inch legroom and offer good support even for a tall frame. However, the driving position is weirdly off-center which is further pronounced with the not-so-user-friendly column shifter.

Model 2018 GMC Sierra 1500 2018 Ford F-150 2018 Chevrolet Silverado 1500 2018 Ram 1500
Passenger capacity 3 3 3 3
Front (Head/Shoulder/Leg) (In.) 42.4/ 66.0/ 45.3 40.8/ 66.7/ 43.9 42.4/ 66.0/ 45.3 39.9/ 66.0/ 41.0
Rear (Head/Shoulder/Leg) (In.) N/A N/A N/A N/A

In this comparison, hands-down the Sierra 1500 and the Silverado 1500 offer the best-in-class cabin space which can easily accommodate three adults. Except for a slightly more shoulder room offered on the F-150, the legroom and headroom of the Sierra 1500 are second to none.

Interior Features:

  • Air conditioning
  • Power door lock and windows
  • Tilt-only steering wheel
  • Available Dual-zone automatic climate control
  • Available power-adjustable front seats
  • Available sliding rear window

2018 GMC Sierra 1500 Regular Cab Infotainment System

While the base 2018 GMC Sierra 1500 gets the 7-inch touchscreen infotainment and Bluetooth, all higher trims get the 8-inch touchscreen infotainment with Android Auto and Apple CarPlay capability. That said, the GMC Intellilink infotainment interface is intuitive, the icons are on a smaller side thus making it a bit difficult to use.

2018 GMC Sierra Infotainment

As stated above, moving up to the SLE trim gets you an 8-inch touchscreen which has an overall better experience than the base unit. A six-speaker sound system is standard on both the trims while OnStar communication is optional on the base trim and wireless smartphone charging is optional on the SLE trim. 

2018 GMC Sierra 1500 Regular Cab Cargo Capacity

The 2018 GMC Sierra 1500 Regular Cab comes in two bed sizes Standard (6'7") and Extended (8'). If you are shopping for a work truck that needs to haul plenty of items in the bed, the extended bed will suffice your needs. While the standard bed measures 78.87-inches in length, 64.6-inches wide, and 21.23-inches in height thus offering 61 cubic feet of total cargo volume.

Model 2018 GMC Sierra 1500 2018 Ford F-150 2018 Chevrolet Silverado 1500 2018 Ram 1500
Cargo Volume (ft³) 61.0 62.3 61.0 57.5

The cargo volume offered on the Ford F-150 is the highest. Although compared to the Sierra 1500's cargo volume it is just 1.3 cubic feet more. 


"We dub GMC' s latest styling experiment "contemporary macho." Like previous GMC trucks, this full-size pickup features blocky styling highlighted by swollen fender flares and a grille that would do a semi-truck proud." - Kelley Blue Book

2018 GMC Sierra 1500 Regular Cab Dimension and Weight

The exterior looks of the 2018 Sierra 1500 remain unchanged for this year. This means the Sierra 1500 retains its typical full-size pick-up truck looks which are- huge, bulky, and with a massive grille dominating the front fascia. All Sierra comes with standard LED accent lights - a pleasantry for spending a little more than the similar Silverado 1500. Higher trim also gets damped tailgate eliminating the dreaded tailgate slam.

However, the now common passive entry with push-button start is not on offer in the GMC Sierra - it looks like GMC intends to give you some old-school experience - at least while entering your truck. Even with the shortest body configuration, the Sierra is a lengthy beast thus maneuvering such a large vehicle through a tight spot may overwhelm you. As the Sierra 1500 measure 205.6-inches in length and is 80-inches in width. 

Model 2018 GMC Sierra 1500 2018 Ford F-150 2018 Chevrolet Silverado 1500 2018 Ram 1500
Curb Weight (lbs) 4515 4069 4515 4520
Length (in) 205.6 209.3 205.6 209.0
Width (in) 80.0 79.9 80.0 79.4
Height (in) 74.0 75.5 74.0 74.6
Ground clearance (in) 8.2 8.8 8.2 8.7
Wheelbase (in) 119.0 122.4 119.0 120.5

Dimension wise the F-150 sits longer in length and stands taller in height than the Sierra 1500. Also, the F-150 has a massive 122.4-inches of wheelbase which is 3.4-inches more than what you get in the Sierra 1500. While to round it off the F-150 offers a class-leading 8.8-inches of ground clearance a full 0.6-inches more than what you get in the Sierra.

Exterior Features:

  • 17-inch steel wheels
  • Locking tailgate
  • Rearview Camera
  • Automatic xenon headlights
  • Available 17-inch alloy wheels
  • Available damped tailgate

The 2018 GMC Sierra 1500 Regular Cab hasn't been extensively crash-tested yet compared to the same model's Crew Cab and other body styles. Between the IIHS and NHTSA, only the latter has crash-tested the Regular Cab version and gave it a perfect score of five stars in the overall safety ratings. The Sierra 1500 Regular Cab also managed a perfect score in the front and side crash test while in the rollover mitigation test it got four out of five stars.

Safety Features:

  • Rearview Camera
  • Available forward-collision warning w/ low-speed automatic emergency braking
  • Available lane departure warning

2018 GMC Sierra 1500 Vs 2018 Ford F-150 

The 2018 F-150 is the best-selling pickup and for good reasons - it combines excellent fuel economy with punchy performance. It comes with a feature-loaded cabin and packs spacious, supportive and comfortable seats.

2018 Ford F-150

However, Sierra's towing capacity is much higher than the F-150's s and it does offer better cabin space between the two. Thus the latter two seals the deal in favor of Sierra for serious pickup truck buyers.

2018 GMC Sierra 1500 Vs 2018 Ram 1500

The Ram 1500 has a significantly lower towing and hauling capacity than the GMC Sierra and other full-size pickups. However, overlook that and you will be amazed by its soothing ride quality when equipped with optional air suspension.

2018 RAM 1500

The RAM 1500 isn't as fuel-efficient or has a spacious cabin as the Sierra 1500 but the overall build quality and the fit and finish level keep the RAM 1500 ahead of it. Thus for the better cabin and ride quality we would choose the RAM over the GMC.

Final Verdict

If you want the capability of a modern full-size pickup truck but with a classier styling, the 2018 GMC Sierra will impress you. Starting with the exterior that's sleeker looking than any other pick-up in the market, the classy feeling continues all the way to the tastefully built and assembled interiors. The transmission of the Sierra is equally impressive but the experience behind the wheel is hampered by the quirky off-center driving position. The Sierra has an edge over the rivals with better cabin space and overall cabin quality. Thus the Sierra is worth the premium over the rivals. That being said, those who can't forgo supple ride quality will find more solace in the RAM 1500 instead of the Sierra.


vehicle bio
base price


body style

2dr Regular Cab

engine type

262 cu in

horse power

285 hp @ 5300 rpm


305 lb.-ft. @ 3900 rpm


6 speed Automatic


224 in


133 in


80 in

curb weight

4948 lbs


74 in

Ground Clearance

9 lbs

passenger volume

39.3 cu ft

cargo volume

76.3 cu ft

passenger capacity

3 Seats

fuel economy

17/19/22 mpg

highway range

748.0 mi

basic warranty

3 yr./ 36000 mi.

GMC Sierra 1500 5 year Cost To Own

Cash Price(MSRP)
5 Year Cost To Own
Total 5 year Cost To Own -  $53,145
Year 1Year 2Year 3Year 4Year 5total
Financing Interest$2,280$1,809$1,370$837$289$6,585
Taxes and Fees$3,056$279$202$248$196$3,981
Total Cost-To-Own$15,458$9,260$8,897$10,323$9,207$53,145
Read more about Cost-To-Own »

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