CarRuler

2026 GMC Sierra Denali vs AT4

The AT4 starts at $67,000, $900 more than the Denali ($66,100). For that you get: diesel version available; better fuel economy: up to 23 MPG (vs 18); 3.0″ more ground clearance.

What the AT4 adds for $900 more

  • Diesel version available
  • Better fuel economy: up to 23 MPG (vs 18)
  • 3.0″ more ground clearance

What it gives up

  • No RWD version
  • About 610 lb heavier
SpecDenaliAT4
Price (MSRP)$66,100–$69,900$67,000–$67,500
Engines5.3L V8 (355 hp)3.0L I6 diesel (305 hp)
DriveRWD, 4WD4WD
MPG (combined)17–1823
Towing (max)9,200 lb9,000 lb
Seats55
Upholsterypremium leatherleather
Paint colors66
Curb weight (from)4,890 lb5,500 lb
Ground clearance8.1″21 cm11.1″28 cm

2026 model year, manufacturer's suggested retail prices before destination fees, taxes and options. Ranges cover every configuration of the trim.

More Sierra trim comparisons

All Sierra trims, prices and dimensions · Sierra cost to drive