BMW M vs Infiniti Q50
The Infiniti Q50 is the more efficient of the two: it reaches 31 mpg combined versus 26 mpg for the BMW M, a 5 mpg advantage and costs about $450 less per year to fuel.
Across 5 measured categories, the Infiniti Q50 leads in 4. Figures are EPA test data, not manufacturer claims.
Head-to-head specifications
| Metric | BMW M | Infiniti Q50 |
|---|---|---|
| Best combined MPG | 26 mpg | 31 mpg ✓ |
| Best city MPG | 23 mpg | 29 mpg ✓ |
| Best highway MPG | 32 mpg | 36 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $2,900 | $2,450 ✓ |
| Lowest CO2 output | 264 g/mi ✓ | 286 g/mi |
| Engines offered | SIDI; PHEV, SIDI, SIDI; Mild Hybrid | SIDI, 3.5, 2.0, 3.7 |
| Transmissions | Automatic (S8), Manual 6-spd, Automatic (AM-S7) | Automatic (S7) |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive | All-Wheel Drive, Rear-Wheel Drive |
| Fuel types | Premium and Electricity, Premium | Premium |
| EPA class | Subcompact Cars | Midsize Cars |
| Years covered | 2015–2027 | 2015–2024 |
| Configurations on record | 236 | 60 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
M vs Q50: common questions
Which is better on gas, the BMW M or the Infiniti Q50?
The Infiniti Q50 is the more efficient of the two: it reaches 31 mpg combined versus 26 mpg for the BMW M, a 5 mpg advantage and costs about $450 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Infiniti Q50 runs about $2,450 a year in fuel at its most efficient configuration, versus about $2,900 for the BMW M — a difference of roughly $450 per year.
What engines do the M and Q50 offer?
BMW M: SIDI; PHEV, SIDI, SIDI; Mild Hybrid. Infiniti Q50: SIDI, 3.5, 2.0, 3.7.
Are they in the same vehicle class?
The EPA classifies the BMW M as Subcompact Cars and the Infiniti Q50 as Midsize Cars, so they aren't a like-for-like match on size.
More M comparisons
Comparison id: bmw-m-vs-infiniti-q50