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2020 GMC Sierra 2500HD AT4 Review

Driven by cheaper fuel prices and a resurgent appetite for all things large, the truck segment is in the midst of a renaissance like never before: they’re bigger, smarter, more capable and increasingly luxurious with jaw dropping price tags. And this one is a real monster – the all-new GMC Sierra Heavy Duty. I’ve driven some big trucks this year including Ram’s new 3500 dually Mega Cab but this one feels even more gargantuan. It’s the Sierra 2500 Heavy Duty; taller and longer than its predecessor and now available in AT4 livery for a little more off-road worthiness. You’ll need the various sidesteps, bumper steps and grab handles for this one because it’s just that large.

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2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra SLT

Englewood, CO

4WD - V8, 6.2L; VVT

112,081 miles

The Sharpest Rides

Certified

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Englewood CO

2018 GMC Sierra Fleet/Base

Englewood, CO

4WD - V8, 5.3L; FFV; VVT

31,322 miles

The Sharpest Rides

Certified

2014 GMC Sierra Englewood CO

2014 GMC Sierra Englewood CO

2014 GMC Sierra Englewood CO

2014 GMC Sierra Englewood CO

2014 GMC Sierra Englewood CO

2014 GMC Sierra Englewood CO

2014 GMC Sierra Englewood CO

2014 GMC Sierra Englewood CO

2014 GMC Sierra SLT

Englewood, CO

4WD - V8, 5.3L; FFV; VVT

149,269 miles

The Sharpest Rides

Certified

2020 GMC Sierra Englewood CO

2020 GMC Sierra AT4

Englewood, CO

4WD - V8, 6.6L; Turbo

7,402 miles

The Sharpest Rides

Certified

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Rock Springs WY

2021 GMC Sierra Elevation

Rock Springs, WY

4WD - V8, 5.3L

5,537 miles

Wyoming Trucks

Certified

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra Sylacauga AL

2020 GMC Sierra SLT

Sylacauga, AL

4WD - V8, 5.3L

70,560 miles

Toyota Of Sylacauga

Certified

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Lancaster SC

2020 GMC Sierra Denali

Lancaster, SC

4WD - V8, 6.2L

31,026 miles

Dark Sky Metallic

Burns Ford Lancaster

Certified

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra Livingston MT

2017 GMC Sierra SLE

Livingston, MT

4WD - V8, 5.3L; FFV; VVT

94,689 miles

Yellowstone Country Motors

Certified

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra Lancaster SC

2015 GMC Sierra SLT

Lancaster, SC

4WD - V8, 5.3L; FFV; VVT

157,046 miles

Bronze Alloy Metallic

Burns Ford Lancaster

Certified

2017 GMC Sierra Rock Springs WY

2017 GMC Sierra Fleet/Base

Rock Springs, WY

4WD - V8, 6.0L; FFV

39,825 miles

Wyoming Trucks

Certified

2019 GMC Sierra Roosevelt UT

2019 GMC Sierra Denali

Roosevelt, UT

4WD - V8, 6.2L

58,388 miles

White Frost Tricoat

L&L Motor Co., Inc. - CDJR & Ford

Certified

2016 GMC Sierra Sylacauga AL

2016 GMC Sierra Denali

Sylacauga, AL

4WD - V8, 5.3L; FFV; VVT

128,409 miles

White Frost Tricoat

Toyota Of Sylacauga

Certified

2015 GMC Sierra Rock Springs WY

2015 GMC Sierra SLT

Rock Springs, WY

4WD - V8, 6.6L; Turbo

118,064 miles

Wyoming Trucks

Certified

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra Vero Beach FL

2019 GMC Sierra AT4

Vero Beach, FL

4WD - V8, 6.2L

80,959 miles

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra Piqua OH

2020 GMC Sierra AT4

4WD - V8, 6.2L

14,181 miles

Sherry Chrysler Dodge Jeep Ram

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra Mesa AZ

2017 GMC Sierra SLT

4WD - V8, 6.6L; Turbo

9,969 miles

Arizona Car Sales

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Lebanon PA

2017 GMC Sierra Denali

Lebanon, PA

4WD - V8, 6.6L; Turbo

60,064 miles

Lebanon Auto Sales

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Pierre SD

2020 GMC Sierra Denali

4WD - L6, 3.0L; DOHC; Tur…

26,235 miles

Beck Motors, Inc

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra Turlock CA

2014 GMC Sierra SLT

Turlock, CA

4WD - V8, 5.3L; FFV; VVT

140,804 miles

Bonander Buick GMC

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra Lima OH

2018 GMC Sierra SLE

4WD - V8, 5.3L; FFV; VVT

79,684 miles

Taylor Kia of Lima

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Pierre SD

2019 GMC Sierra Denali

4WD - V8, 6.6L; Turbo

85,620 miles

Beck Motors, Inc

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Kalispell MT

2019 GMC Sierra Denali

Kalispell, MT

4WD - V8, 6.6L; Turbo

56,059 miles

White Frost Tricoat

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Pasco WA

2018 GMC Sierra Denali

4WD - V8, 6.6L; Turbo

87,539 miles

Red Quartz Tintcoat

West Coast Auto Dealers

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra Island City OR

2015 GMC Sierra SLE

Island City, OR

4WD - V8, 6.0L; FFV

46,820 miles

Stealth Gray Metalli

The Other Guys Auto Sales

Used GMC Sierra