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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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2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra Whitesboro TX

2020 GMC Sierra AT4

4WD - V8, 6.2L

Whitesboro, TX

Holiday Auto Group

71,642 miles

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Houma LA

2020 GMC Sierra Denali

4WD - V8, 6.2L

Pacific Blue Metallic

Trapp Chevrolet Cadillac

73,523 miles

2020 GMC Sierra Elk City OK

2020 GMC Sierra SLT

4WD - V8, 5.3L

Satin Steel Metallic

Elk City, OK

67,752 miles

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra AT4

4WD - 6 Cyl, 3.0L

Pacific Blue Metallic

Billings, MT

GMC of Billings

85,207 miles

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra SLT

4WD - V8, 6.2L

Billings, MT

GMC of Billings

40,325 miles

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra Billings MT

2020 GMC Sierra SLT

4WD - 6 Cyl, 3.0L

Pacific Blue Metallic

Billings, MT

GMC of Billings

75,349 miles

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Milford OH

2020 GMC Sierra Denali

4WD - V8, 6.6L

Pacific Blue Metallic

Milford, OH

Crossroads Car and Truck

39,849 miles

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra AT4

4WD - 6 Cyl, 3.0L

Pacific Blue Metallic

Henning Automotive Holdings

75,383 miles

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Denali

4WD - V8, 6.2L

White Frost Tricoat

Henning Automotive Holdings

65,275 miles

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Denali

4WD - V8, 6.2L

Henning Automotive Holdings

84,128 miles

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra Denali

4WD - V8, 6.6L

Carbon Black Metallic

West Bend, WI

Lynch Buick GMC of West Bend

66,503 miles

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra West Bend WI

2020 GMC Sierra SLT

RWD - V8, 5.3L

White Frost Tricoat

West Bend, WI

Lynch Buick GMC of West Bend

75,083 miles

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Red Lion PA

2020 GMC Sierra Denali

4WD - V8, 6.6L

Red Lion, PA

77,074 miles

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Lexington SC

2020 GMC Sierra Denali

4WD - V8, 6.6L

Lexington, SC

Herndon Chevrolet

43,845 miles

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Denali

4WD - V8, 6.6L

Johnson City, TN

Chaparral Buick GMC

92,006 miles

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Livingston TX

2020 GMC Sierra Elevation

RWD - 4 Cyl, 2.7L

Livingston, TX

Kramer Autoplex

103,001 miles

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Johnson City TN

2020 GMC Sierra Elevation

4WD - 6 Cyl, 3.0L

Johnson City, TN

Chaparral Buick GMC

108,018 miles

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Rainbow City AL

2020 GMC Sierra Denali

4WD - V8, 6.6L

Quicksilver Metallic

Rainbow City, AL

Kia of Rainbow City

127,878 miles

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Cathedral City CA

2020 GMC Sierra Denali

4WD - V8, 6.6L

Cathedral City, CA

Jessup Auto Plaza

40,438 miles

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Elburn IL

2020 GMC Sierra Denali

4WD - V8, 6.6L

Bob Jass Chevrolet, Inc.

66,061 miles

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra East Providence RI

2020 GMC Sierra Denali

4WD - V8, 6.2L

East Providence, RI

Prestige Mitsubishi

89,639 miles

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra Westport MA

2020 GMC Sierra SLT

4WD - V8, 6.2L

Westport, MA

Prestige Auto Mart Westport

89,873 miles

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra Pasco WA

2020 GMC Sierra SLE

4WD - 6 Cyl, 3.0L

Henning Automotive Holdings

55,891 miles

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra Warsaw IN

2020 GMC Sierra AT4

4WD - 6 Cyl, 3.0L

Carbon Black Metallic

Warsaw GMC CDJR

112,084 miles

Vehicles 1 - 224

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