2020 head-to-head · Midsize Car
2020 Acura RLX vs Audi S7 Hybrid
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · 3.5L 6-cyl · 10-speed automatic · 23 MPG
AWD · 2.9L 6-cyl turbo · 8-speed automatic · 22 MPG
The 2020 Acura RLX 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 2020 Audi S7 Hybrid (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
- Acura RLX
- Audi S7 Hybrid
Side by side
| Acura RLX | Audi S7 Hybrid | |
|---|---|---|
| $2,576 | Your annual fuel cost | $2,693 |
| 23 MPG | Combined efficiency | 22 MPG |
| 20 MPG | City | 18 MPG |
| 29 MPG | Highway | 28 MPG |
| 102 cu ft | Passenger volume | 94 cu ft |
| 15 cu ft | Cargo volume | 25 cu ft |
| 383 g/mi | Tailpipe CO₂ (g/mi) | 410 g/mi |
| 5/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Hybrid |
| Premium gasoline | Fuel | Premium gasoline |
| 3.5L 6-cyl | Engine / motor | 2.9L 6-cyl turbo |
| 10-speed automatic | Transmission | 8-speed automatic |
| FWD | Drivetrain | AWD |
✓ 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.
Acura RLX vs Audi S7 Hybrid across model years
- Acura RLX
- Audi S7 Hybrid
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 Acura RLX has more passenger space (102 vs. 94 cu ft); the Audi S7 Hybrid has more cargo space (25 vs. 15 cu ft).
Among 64 2020 midsize cars, the Acura RLX ranks 56th and the Audi S7 Hybrid 59th for lowest fuel cost.
The powertrains differ: the Acura RLX is a conventional gas model, while the Audi S7 Hybrid is a full hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2020 Acura RLX or the 2020 Audi S7 Hybrid?
Measured by cost to drive, the Acura RLX. The Acura RLX is rated 23 MPG combined and the Audi S7 Hybrid 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 Acura RLX vs. the Audi S7 Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Acura RLX and $2,693 for the Audi S7 Hybrid.
Which has more cargo space?
The Audi S7 Hybrid, with 25 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).
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