GMC Sierra EV Denali vs Xiaomi SU7 Ultra: Which EV is better?
Head-to-head: GMC Sierra EV Denali vs Xiaomi SU7 Ultra. Compare real range, efficiency, charging time, price, rating and running costs to find the best electric vehicle for you in 2026.
Our verdict
Xiaomi SU7 Ultra wins this head-to-head
It wins 5 of 8 categories compared below, with a margin of 3 category wins.
The numbers that matter
Real, comparable stats from our database. The green value wins each category.
| Specification | Sierra EV Denali | SU7 Ultra |
|---|---|---|
| Range Sierra EV Denali wins | 708 km | 630 km |
| Battery Sierra EV Denali wins | 205 kWh | 93.7 kWh |
| Efficiency SU7 Ultra wins | 29.6 kWh/100km | 16.4 kWh/100km |
| 0-100 km/h SU7 Ultra wins | 4.3 s | 1.98 s |
| Fast charge 10-80% SU7 Ultra wins | ~50 min | ~25 min |
| Seats tie | 5 | 5 |
| Price SU7 Ultra wins | $100,000 | $82,400 |
| Rating SU7 Ultra wins | 4.4 / 5 | 4.8 / 5 |
| Est. running cost / yr | $666/yr | $369/yr |
View the full specification sheet
| Specification | Sierra EV Denali | SU7 Ultra |
|---|---|---|
| Battery | 205 kWh | 93.7 kWh |
| Range | 440 mi (EPA) | 630 km (CLTC) |
| Top speed | 110 mph | 350 km/h |
| Power | AWD · 760 hp | Tri-motor AWD · 1,548 hp |
| 0-60 mph | 4.3 s | — |
| Charging (10-80%) | ~50 min (350kW) | ~25 min (800V) |
| Drive | Dual motor AWD | Tri-motor AWD |
| Efficiency | 2.1 mi/kWh | 16.4 kWh/100 km |
| Seats | 5 | 5 |
| Cargo | 5.9 ft bed + frunk | 480 L |
| V2L | Yes | — |
| Tow rating | 9,500 lb | — |
| 0-100 km/h | — | 1.98 s |
GMC Sierra EV Denali
Pros
- Huge range
- Luxurious Denali interior
- MultiPro tailgate
- Fast charging
Cons
- Very expensive
- Heavy
- Slow to charge a 205 kWh pack
- Truck-tall in garages
Xiaomi SU7 Ultra
Pros
- Ridiculous performance
- Track-ready hardware
- Practical cabin
- Very fast charging
Cons
- Very expensive
- Tri-motor drains power
- Young brand
- Tight rear headroom
Frequently asked questions
Is the Xiaomi SU7 Ultra really better than GMC Sierra EV Denali?
Our verdict is based on real specs: range, battery, efficiency, acceleration, charging speed, seats, price and rating. The winner wins the majority of those categories, but the right choice depends on your budget, driving style and priorities.
Which has more range, GMC Sierra EV Denali or Xiaomi SU7 Ultra?
708 km vs 630 km respectively, before factoring in weather and driving conditions.
Which is cheaper to run?
Based on official efficiency and a typical $0.15/kWh tariff at 15,000 km per year, running costs are estimated at $666/yr for the GMC Sierra EV Denali and $369/yr for the Xiaomi SU7 Ultra.
Should I compare more models?
Yes - add both models to our interactive comparator to see every spec side by side, or use the Which EV quiz to find more models that fit your budget and lifestyle.
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Not sure which one is right for you?
Add these models to our interactive comparator and compare every spec side by side, or take the quiz to find even more matches.