2025 vs 2026 GMC Sierra: what changed?
2026 GMC Sierra vs 2025: mostly carryover from 2025. The 2026 starts at $38,300, about the same as before.
Starting price
no change
$38,300 → $38,300
Most powerful
420 hp
420 hp in 2025
Best fuel economy
23 MPG
24 MPG in 2025
Length
231.9″589 cm
same as 2025
Price changes by trim
| Trim | 2025 | 2026 | Change |
|---|---|---|---|
| Pro | $38,300 | $38,300 | no change |
| SLE | $48,800 | $48,700 | −$100 |
| Elevation | $50,500 | $50,500 | no change |
| SLT | $54,900 | $55,100 | +$200 |
| Denali | $65,400 | $66,100 | +$700 |
| AT4 | $66,800 | $67,000 | +$200 |
| AT4X | $79,400 | $79,600 | +$200 |
| Denali Ultimate | $84,200 | $84,400 | +$200 |
Cheapest configuration of each trim, MSRP before destination fees, taxes and options.