GMC Sierra 1500 vs Chevrolet Silverado SS Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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Used Car Pricing Used listing price comparison and analysis.

2020 GMC Sierra 1500
AT4 Crew Cab 4WD
CarGurus Instant Market Value
$58,745
2006 Chevrolet Silverado SS
Extended Cab RWD
CarGurus Instant Market Value
$33,805
15 listings nationwide

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Expert Reviews Reviews from CarGurus experts.

2020 GMC Sierra 1500
AT4 Crew Cab 4WD
George Kennedy Preview:

For 2020, the Sierra 1500 features a number of upgrades to keep it at the forefront of the full-size light-duty pickup truck market. Shoppers can choose from a range of engines, incl...

2006 Chevrolet Silverado SS
Extended Cab RWD

The Chevrolet Silverado 1500 SS switched to rear wheel drive and got new brakes for its final year of production. The second fastest domestic pickup truck comes in one trim that has 4...

User Reviews Reviews from CarGurus users who have driven or owned the car.

2020 GMC Sierra 1500
AT4 Crew Cab 4WD
No User Reviews
2006 Chevrolet Silverado SS
Extended Cab RWD
10
writes:
it feels like drivng a rocket ship
85
2006 Chevrolet Silverado SS Extended Cab RWDReview:

Awesome — Its called the Intimidator because its a Dale Earnhardt edition silverado 1500 ss.... it has 495 hp,...

25
2006 Chevrolet Silverado SS Extended Cab RWDReview:

Silverado Ss — It's a rear-wheel drive Chevy Silverado SS with a 6.0 liter V8 power plant, full leather interior, d...

Specs

2020 GMC Sierra 1500
AT4 Crew Cab 4WD
2006 Chevrolet Silverado SS
Extended Cab RWD
Powertrain 4-Speed Automatic
Drivetrain
4X4
4X4
4X4
RWD
Fuel Economy, City
--
--
--
13 MPG
Fuel Economy, Highway
--
--
--
18 MPG
Fuel Tank Volume 24 gal 26 gal
Engine
Fuel Type
Gasoline
Diesel
Gasoline
Gasoline
Power
--
277 hp @ 3,750 RPM
355 hp @ 5,600 RPM
345 hp @ 5,200 RPM
Torque
--
460 lb-ft @ 1,500 RPM
383 lb-ft @ 4,100 RPM
380 lb-ft @ 4,000 RPM
Cylinders
8 cylinders
6 cylinders
8 cylinders
8 cylinders
Compression Ratio
11.5:1
--
11:1
9.7:1
Displacement
6,200 cc
3,000 cc
5,300 cc
6,000 cc
Bore x Stroke
4.06 in x 3.62 in
--
3.78 in x 3.62 in
4 in x 3.62 in
Safety
ABS Brakes Standard Standard
Driver Airbag Standard Standard
Passenger Airbag Standard Standard
Front Side Airbags Standard --
Curtain Airbags Standard --
NHTSA Crash Test Results
Front Driver -- 4 stars
Front Passenger -- 3 stars
Rollover (pre-2011) -- 4 stars
Overall 4 stars --
Front Crash Overall 4 stars --
Front Crash Driver 4 stars --
Front Crash Passenger 4 stars --
Side Crash Overall 5 stars --
Side Barrier Driver 5 stars --
Side Barrier Passenger 5 stars --
Side Pole Driver 5 stars --
Comfort and Convenience
Sunroof/Moonroof -- Optional
Leather Seats -- Optional
Air Conditioning Standard Standard
CD Player -- Standard
Cassette Player -- Optional
Radio Standard Standard
Power Windows Standard Standard
Power Door Locks Standard Standard
Driver Power Seats Standard Optional
Passenger Power Seats Standard Optional
Interior
Maximum Seating 5 seats 6 seats
Front Legroom 44.5 in 41.3 in
Back Legroom 43.4 in 33.7 in
Payload and Towing
Cargo Volume -- --
Maximum Payload -- 1,253 lbs
Standard Towing Capacity 9,400 lbs 7,800 lbs
Exterior
Length 231.7 in 227.7 in
Width 81.2 in 78.5 in
Height 78.4 in 73.9 in
Wheelbase 147.5 in 143.5 in
Bed Length 69.9 in 78.7 in

Available Options

2020 GMC Sierra 1500
AT4 Crew Cab 4WD

Exterior Colors

  • Carbon Black Metallic
  • Dark Sky Metallic
  • Onyx Black
  • Pacific Blue Metallic
  • Red Quartz Tintcoat
  • Satin Steel Metallic
  • Smokey Quartz Metallic
  • Summit White

Option Packages

  • Engine, 6.2L Ecotec3 V8
  • Engine, Duramax 3.0L Turbo-Diesel I6
  • AT4 CARBONPRO Edition
  • AT4 Preferred Package
  • AT4 Premium Package
  • Driver Alert Package I
  • Driver Alert Package II
  • LPO, Accessory Assist Step, Off-Road, Black
  • LPO, Assist Step And Tonneau Package
  • LPO, Assist Steps, Black Tubular, 6" Rectangular Wheel To Wheel
  • LPO, Auxiliary Trailer Camera, Wired, One Camera And Hardware
  • LPO, Black Tubular Assist Steps, 4" Round
  • LPO, Black Tubular Assist Steps, 6" Rectangular
  • LPO, Body Color Wheel Arch Moldings
  • LPO, Cargo Convenience Package
  • LPO, Cat-Back Performance Exhaust
  • LPO, Front Brake Kit-Performance
  • LPO, Performance Air Intake System
  • LPO, Performance Upgrade Package
  • LPO, Rear Seat Infotainment System With DVD Player
  • LPO, Tri-Fold Hard Tonneau Cover
  • LPO, Tri-Fold Soft Tonneau Cover
  • Off-Road Performance Package
  • Sunroof, Power
  • Technology Package
  • Wheels, 20" X 9" (50.8 CM X 22.9 CM) Machined Aluminum With Carbon Grey Metallic Accents
2006 Chevrolet Silverado SS
Extended Cab RWD

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