Infiniti Q50 vs Honda Civic
The Honda Civic is the more efficient of the two: it reaches 49 mpg combined versus 31 mpg for the Infiniti Q50, a 18 mpg advantage and costs about $1,200 less per year to fuel.
Across 5 measured categories, the Honda Civic leads in 5. Figures are EPA test data, not manufacturer claims.
Head-to-head specifications
| Metric | Infiniti Q50 | Honda Civic |
|---|---|---|
| Best combined MPG | 31 mpg | 49 mpg ✓ |
| Best city MPG | 29 mpg | 50 mpg ✓ |
| Best highway MPG | 36 mpg | 47 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $2,450 | $1,250 ✓ |
| Lowest CO2 output | 286 g/mi | 181 g/mi ✓ |
| Engines offered | SIDI, 3.5, 2.0, 3.7 | SIDI, SIDI; Hybrid, 2.0, RNG=193 |
| Transmissions | Automatic (S7) | Manual 6-spd, Automatic (variable gear ratios), Automatic (AV-S7) |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive | Front-Wheel Drive |
| Fuel types | Premium | Premium, Regular, CNG |
| EPA class | Midsize Cars | Midsize Cars |
| Years covered | 2015–2024 | 2015–2026 |
| Configurations on record | 60 | 132 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Q50 vs Civic: common questions
Which is better on gas, the Infiniti Q50 or the Honda Civic?
The Honda Civic is the more efficient of the two: it reaches 49 mpg combined versus 31 mpg for the Infiniti Q50, a 18 mpg advantage and costs about $1,200 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Honda Civic runs about $1,250 a year in fuel at its most efficient configuration, versus about $2,450 for the Infiniti Q50 — a difference of roughly $1,200 per year.
What engines do the Q50 and Civic offer?
Infiniti Q50: SIDI, 3.5, 2.0, 3.7. Honda Civic: SIDI, SIDI; Hybrid, 2.0, RNG=193.
Are they in the same vehicle class?
Yes — the EPA classifies both the Infiniti Q50 and the Honda Civic as Midsize Cars, so they compete directly.
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Comparison id: infiniti-q50-vs-honda-civic