BMW X5 vs Infiniti QX80
The BMW X5 is the more efficient of the two: it reaches 27 mpg combined versus 18 mpg for the Infiniti QX80, a 9 mpg advantage and costs about $1,300 less per year to fuel.
Across 5 measured categories, the BMW X5 leads in 5. Figures are EPA test data, not manufacturer claims.
2015–2027
BMW X5
Standard Sport Utility Vehicle 4WD · 61 configurations
2015–2027
Infiniti QX80
Standard Sport Utility Vehicle 4WD · 30 configurations
Head-to-head specifications
| Metric | BMW X5 | Infiniti QX80 |
|---|---|---|
| Best combined MPG | 27 mpg ✓ | 18 mpg |
| Best city MPG | 24 mpg ✓ | 16 mpg |
| Best highway MPG | 31 mpg ✓ | 20 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $2,900 ✓ | $4,200 |
| Lowest CO2 output | 130 g/mi ✓ | 504 g/mi |
| Engines offered | SIDI & PFI; Mild Hybrid, SIDI; PHEV, SIDI; Mild Hybrid, SIDI | SIDI, SIDI; MDPV, SIDI; MDPV (Curb Weight >6000 lbs), SIDI; Over 6000 lbs curb weight |
| Transmissions | Automatic (S8) | Automatic (S9), Automatic (S7) |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive | 4-Wheel Drive, Rear-Wheel Drive |
| Fuel types | Premium, Premium and Electricity, Diesel | Premium |
| EPA class | Standard Sport Utility Vehicle 4WD | Standard Sport Utility Vehicle 4WD |
| Years covered | 2015–2027 | 2015–2027 |
| Configurations on record | 61 | 30 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
X5 vs QX80: common questions
Which is better on gas, the BMW X5 or the Infiniti QX80?
The BMW X5 is the more efficient of the two: it reaches 27 mpg combined versus 18 mpg for the Infiniti QX80, a 9 mpg advantage and costs about $1,300 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the BMW X5 runs about $2,900 a year in fuel at its most efficient configuration, versus about $4,200 for the Infiniti QX80 — a difference of roughly $1,300 per year.
What engines do the X5 and QX80 offer?
BMW X5: SIDI & PFI; Mild Hybrid, SIDI; PHEV, SIDI; Mild Hybrid, SIDI. Infiniti QX80: SIDI, SIDI; MDPV, SIDI; MDPV (Curb Weight >6000 lbs), SIDI; Over 6000 lbs curb weight.
Are they in the same vehicle class?
Yes — the EPA classifies both the BMW X5 and the Infiniti QX80 as Standard Sport Utility Vehicle 4WD, so they compete directly.
More X5 comparisons
Comparison id: bmw-x5-vs-infiniti-qx80