Infiniti · Midsize cars · Gasoline
Infiniti Q50: MPG and annual fuel cost, 2024
The Infiniti Q50 was last rated in the data for model year 2024, at 23 MPG combined, 8th of 10 midsize cars, in the bottom quarter.
- 23MPG combined8th of 10 in class
- $3,550a year in fuel8th of 10 in class
- 388g/mile CO2
Where it stands
Compared only with the gasoline models of its class it is 5th of 7 gasoline midsize cars, in the lower half. The median of that narrower group is 26 MPG, against 30.5 MPG for all midsize cars together.
Across every class it is tied for 10th of 29 gasoline models, in the upper half.
In its class, just ahead of it is the Jaguar XF at 26 MPG and just behind it is the Maserati Ghibli at 20 MPG.
Fuel cost and CO2
The file prices the fuel for its most efficient version at about $3,550 a year, assuming 15,000 miles a year with 55% of them in the city and premium gasoline at $5.48 per gallon. That is $1,075 more than the midsize cars median of $2,475.
It emits 388 g of CO2 per mile from the tailpipe; the midsize cars median is 293.5, a difference of 94 g/mile.
Rated versions
In the city the most efficient version is rated 20 and on the highway 29, 9 better on the open road. 4 versions are rated for 2024. The most efficient, Q50: 3.0 L, 6 cyl, Automatic (S7), RWD, gets 23 MPG; the least efficient listed, Q50 Red Sport: 3.0 L, 6 cyl, Automatic (S7), RWD, gets 22 MPG, a gap of 1 MPG. With the file's assumptions that gap is worth about $200 a year in fuel.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile |
|---|---|---|---|---|---|
| Q50: 3.0 L, 6 cyl, Automatic (S7), RWD | 23 | 20 | 29 | $3,550 | 388 |
| Q50 AWD: 3.0 L, 6 cyl, Automatic (S7), AWD | 22 | 19 | 27 | $3,750 | 403 |
| Q50 Red Sport AWD: 3.0 L, 6 cyl, Automatic (S7), AWD | 22 | 19 | 26 | $3,750 | 411 |
| Q50 Red Sport: 3.0 L, 6 cyl, Automatic (S7), RWD | 22 | 20 | 26 | $3,750 | 403 |
Year by year
The Infiniti Q50 is in the data for 6 of the 8 model years from 2019 to 2026. Its best combined rating went from 25 in 2019 to 23 MPG in 2024, down 2 MPG. The number of rated versions shrank from 6 to 4. Fuel cost for the best version is $3,550 in the latest data against $3,300 in 2019, although the file applies today's fuel prices to every model year, so that change comes from the rating, not from prices.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2024 | 4 | 23 | 22 | $3,550 | 388 | 30 |
| 2023 | 4 | 23 | 22 | $3,550 | 388 | 28 |
| 2022 | 4 | 23 | 22 | $3,550 | 388 | 28 |
| 2021 | 4 | 23 | 22 | $3,550 | 388 | 28.5 |
| 2020 | 4 | 23 | 22 | $3,550 | 387 | 28 |
| 2019 | 6 | 25 | 22 | $3,300 | 356 | 29 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| Jaguar XF | Gasoline | 26 | $3,150 | 2024 |
| Maserati Ghibli | Gasoline | 20 | $4,100 | 2024 |
| Bentley Flying Spur | Gasoline | 17 | $4,850 | 2024 |
| MINI Clubman | Gasoline | 29 | $2,850 | 2024 |
| Toyota Camry | Gasoline | 32 | $2,100 | 2024 |
Compare and rank
Rankings: Midsize cars.
Data: US EPA and DOE, as prepared in methods and data.