2021 head-to-head · Midsize Car
2021 Audi RS 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 Lexus LS is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,693 a year to fuel (22 MPG), versus $2,821 for the 2021 Audi RS (21 MPG). That's roughly $128 a year, or about $641 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 RS
- Lexus LS
Side by side
| Audi RS | Lexus LS | |
|---|---|---|
| $2,821 | Your annual fuel cost | $2,693 |
| 21 MPG | Combined efficiency | 22 MPG |
| 18 MPG | City | 18 MPG |
| 25 MPG | Highway | 29 MPG |
| 91 cu ft | Passenger volume | 99 cu ft |
| 22 cu ft | Cargo volume | 13 cu ft |
| 428 g/mi | Tailpipe CO₂ (g/mi) | 399 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 |
| 2.9L 6-cyl turbo | Engine / motor | 3.4L 6-cyl turbo |
| 8-speed automatic | Transmission | 10-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 RS vs Lexus LS across model years
- Audi RS
- 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 (99 vs. 91 cu ft); the Audi RS has more cargo space (22 vs. 13 cu ft).
Among 54 2021 midsize cars, the Audi RS ranks 49th and the Lexus LS 46th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2021 Audi RS or the 2021 Lexus LS?
Measured by cost to drive, the Lexus LS. The Audi RS is rated 21 MPG combined and the Lexus LS 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Audi RS vs. the Lexus LS per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Audi RS and $2,693 for the Lexus LS.
Which has more cargo space?
The Audi RS, with 22 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
Audi RS vs Lexus LS in other years
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