2015 head-to-head · Midsize Car
2015 Infiniti Q70 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 2015 Infiniti Q70 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,821 a year to fuel (21 MPG), versus $3,118 for the 2015 Lexus LS (19 MPG). That's roughly $297 a year, or about $1,485 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 Q70
- Lexus LS
Side by side
| Infiniti Q70 | Lexus LS | |
|---|---|---|
| $2,821 | Your annual fuel cost | $3,118 |
| 21 MPG | Combined efficiency | 19 MPG |
| 18 MPG | City | 16 MPG |
| 26 MPG | Highway | 24 MPG |
| 104 cu ft | Passenger volume | 103 cu ft |
| 15 cu ft | Cargo volume | 14 cu ft |
| 429 g/mi | Tailpipe CO₂ (g/mi) | 460 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 |
| 3.7L 6-cyl | Engine / motor | 4.6L 8-cyl |
| 7-speed automatic | Transmission | 8-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 Q70 vs Lexus LS across model years
- Infiniti Q70
- 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 Q70 has more cargo space (15 vs. 14 cu ft).
Among 69 2015 midsize cars, the Infiniti Q70 ranks 57th and the Lexus LS 62nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Infiniti Q70 or the 2015 Lexus LS?
Measured by cost to drive, the Infiniti Q70. The Infiniti Q70 is rated 21 MPG combined and the Lexus LS 19 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Infiniti Q70 vs. the Lexus LS per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Infiniti Q70 and $3,118 for the Lexus LS.
Which has more cargo space?
The Infiniti Q70, with 15 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
Infiniti Q70 vs Lexus LS in other years
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