Final Price

$136,590
1/27

2026 GMC® Sierra 1500

AT4 Hennessey

  • MSRP
    $78,950
  • Documentation Fee
    +$595
  • McGovern Price
    $140,590

  • GMC Bonus Cash
    -$1,000
  • Buick & GMC Consumer Cash Program
    -$1,500
  • GMC Bonus Cash
    -$1,500
  • Final Price
    $136,590
  • GM Rewards Card Sales Sign Up and Spend Offer
    -$500
  • GM Trade In Allowance Program
    -$4,000
  • GM First Responder Cash Allowance Program
    -$500
  • GM Military Cash Allowance Program
    -$500

$2,291

per month

4.5

% APR

$13,659

Down

60

Months

Get pre-qualified in seconds.

Vehicle Location

McGovern GMC of Westborough

150 Turnpike Rd, Westborough, MA 01581

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Basic information

Stock #

VIN

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Detailed Information

Description

This isn't your average off-road truck, its a 2026 GMC Sierra AT4 Goliath 700 built by Hennessey. Combining high-end GMC refinement with legendary Hennessey Performance engineering, this Goliath 700 is finished in Onyx Black and delivers incredible muscle, aggressive styling, and exceptional capability.

Performance & Capability
•Twin-Screw Supercharger System: Blown air-to-water intercooled setup paired with custom HPE engine calibration for immense, smooth power delivery.
•Aggressive Exhaust: Stainless steel catback exhaust system fitted with sleek upgraded black tips for a deep, commanding rumble.
•DSSV & BDS Suspension: Multimatic DSSV shocks paired with a BDS suspension upgrade and enhanced upper control arms ensure superior ride quality and articulation.
•Big Brake Stopping Power: Upgraded GM Performance 6-piston big brake kit brings all that horsepower to a confident halt.
•Trail-Ready Stance: Riding on 20-inch Hennessey performance wheels wrapped in massive 35-inch off-road tires.

Exterior & Styling
•Goliath Steel Bumpers: Heavy-duty Hennessey Goliath front bumper featuring an integrated push bar, recovery tow hooks, and a heavy-duty branded skid plate, complemented by a matching Goliath rear bumper.
•Illuminated Trail Vision: Integrated 40-inch LED light bar along with 3-inch LED pod lights and upgraded fog lights to slice through the dark.
•Carbon Fiber Touches: Upgraded exposed carbon fiber hood applique and carbon fiber "Hennessey" tailgate applique accenting the deep Onyx Black finish.
•Convenience & Badging: Raised Hennessey and Goliath badging with electronic power running boards for easy entry and exit.

Interior & Exclusivity
•Limited Production: One of only 250 units produced annually, featuring serial-numbered interior plaques.
•Premium Protection: Custom Hennessey all-weather floor mats protecting the factory-fresh cabin.
•Peace of Mind: Backed by a 3-year / 36,000-mile limited warranty.

Dealership Information

Sunday

Closed

Monday

9:00am - 7:00pm

Tuesday

9:00am - 7:00pm

Wednesday

9:00am - 7:00pm

Thursday

9:00am - 7:00pm

Friday

9:00am - 6:00pm

Saturday

9:00am - 6:00pm

McGovern GMC of Westborough

2026 GMC® Sierra 1500

AT4 Hennessey

  • MSRP
    $78,950
  • Documentation Fee
    +$595
  • McGovern Price
    $140,590

  • GMC Bonus Cash
    -$1,000
  • Buick & GMC Consumer Cash Program
    -$1,500
  • GMC Bonus Cash
    -$1,500
  • Final Price
    $136,590
  • GM Rewards Card Sales Sign Up and Spend Offer
    -$500
  • GM Trade In Allowance Program
    -$4,000
  • GM First Responder Cash Allowance Program
    -$500
  • GM Military Cash Allowance Program
    -$500

$2,291

per month

4.5

% APR

$13,659

Down

60

Months

Get pre-qualified in seconds.