2021 head-to-head · Midsize Car
2021 Infiniti Q50 vs Lexus LS
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2021 Infiniti Q50 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,576 a year to fuel (23 MPG), versus $2,693 for the 2021 Lexus LS (22 MPG). That's roughly $117 a year, or about $585 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Infiniti Q50
- Lexus LS
Side by side
| Infiniti Q50 | Lexus LS | |
|---|---|---|
| $2,576 | Your annual fuel cost | $2,693 |
| 23 MPG | Combined efficiency | 22 MPG |
| 20 MPG | City | 18 MPG |
| 29 MPG | Highway | 29 MPG |
| 100 cu ft | Passenger volume | 99 cu ft |
| 14 cu ft | Cargo volume | 13 cu ft |
| 388 g/mi | Tailpipe CO₂ (g/mi) | 399 g/mi |
| 5/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.4L 6-cyl turbo |
| 7-speed automatic | Transmission | 10-speed automatic |
| RWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Infiniti Q50 vs Lexus LS across model years
- Infiniti Q50
- Lexus LS
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the Infiniti Q50 has more cargo space (14 vs. 13 cu ft).
Among 54 2021 midsize cars, the Infiniti Q50 ranks 45th and the Lexus LS 46th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2021 Infiniti Q50 or the 2021 Lexus LS?
Measured by cost to drive, the Infiniti Q50. The Infiniti Q50 is rated 23 MPG combined and the Lexus LS 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Infiniti Q50 vs. the Lexus LS per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Infiniti Q50 and $2,693 for the Lexus LS.
Which has more cargo space?
The Infiniti Q50, with 14 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
Infiniti Q50 vs Lexus LS in other years
More 2021 comparisons
Infiniti Q50 vs…
Or compare the 2021 Infiniti Q50 with anything else: