2017 head-to-head · Midsize Car
2017 Audi S7 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.
AWD · 4.0L 8-cyl turbo · 7-speed dual-clutch · 21 MPG
The 2017 Audi S7 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 2017 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
- Audi S7
- Lexus LS
Side by side
| Audi S7 | Lexus LS | |
|---|---|---|
| $2,821 | Your annual fuel cost | $3,118 |
| 21 MPG | Combined efficiency | 19 MPG |
| 17 MPG | City | 16 MPG |
| 27 MPG | Highway | 24 MPG |
| 94 cu ft | Passenger volume | 103 cu ft |
| 25 cu ft | Cargo volume | 14 cu ft |
| 427 g/mi | Tailpipe CO₂ (g/mi) | 460 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 4.6L 8-cyl |
| 7-speed dual-clutch | Transmission | 8-speed automatic |
| AWD | 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.
Audi S7 vs Lexus LS across model years
- Audi S7
- 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 Lexus LS has more passenger space (103 vs. 94 cu ft); the Audi S7 has more cargo space (25 vs. 14 cu ft).
Among 67 2017 midsize cars, the Audi S7 ranks 58th and the Lexus LS 60th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2017 Audi S7 or the 2017 Lexus LS?
Measured by cost to drive, the Audi S7. The Audi S7 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 2017 Audi S7 vs. the Lexus LS per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Audi S7 and $3,118 for the Lexus LS.
Which has more cargo space?
The Audi S7, with 25 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
Audi S7 vs Lexus LS in other years
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