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2025 GMC Sierra Denali Ultimate

Truck · 6.2L V8 · 4WD

85/100

AutoVault's overall score, weighted for what a truck is actually for — performance, technology, comfort, reliability, safety and value.

Specifications

Engine6.2L V8
Horsepower420 hp
Torque460 lb-ft
0–60 mph5.4 sec
Top speed112 mph
Drivetrain4WD
Seats5
Combined MPG12 mpg (10 city / 15 hwy)
Range215 miles
MSRP$84,245
Body styleTruck

The verdict

What's good

  • Open-pore wood, real luxury cabin
  • Massive panoramic sunroof
  • Hands-free highway driving available
  • Powerful, smooth V8

What's not

  • Heavy fuel consumption
  • Tough to park and squeeze in
  • Wide turning circle
  • Bouncy ride when unloaded

The engine

L87

6.2L V8

GMC's 6.2-liter small-block V8 delivers the deep, effortless torque that defines a full-size American truck — quiet when cruising, muscular when towing, in Denali and AT4X flagships.

A direct descendant of Chevrolet's 1955 small-block, this pushrod V8 pairs old-school simplicity with modern cylinder deactivation and direct injection.

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