2020 head-to-head · Midsize Car
2020 Acura RLX vs Bentley Flying Spur
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 · 6.0L 12-cyl turbo · 8-speed dual-clutch · 15 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 $3,950 for the 2020 Bentley Flying Spur (15 MPG). That's roughly $1,374 a year, or about $6,870 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
- Bentley Flying Spur
Side by side
| Acura RLX | Bentley Flying Spur | |
|---|---|---|
| $2,576 | Your annual fuel cost | $3,950 |
| 23 MPG | Combined efficiency | 15 MPG |
| 20 MPG | City | 12 MPG |
| 29 MPG | Highway | 19 MPG |
| 102 cu ft | Passenger volume | 102 cu ft |
| 15 cu ft | Cargo volume | 13 cu ft |
| 383 g/mi | Tailpipe CO₂ (g/mi) | 601 g/mi |
| 5/10 | EPA fuel economy score | 2/10 |
| 5/10 | EPA greenhouse gas score | 2/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.5L 6-cyl | Engine / motor | 6.0L 12-cyl turbo |
| 10-speed automatic | Transmission | 8-speed dual-clutch |
| 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 Bentley Flying Spur across model years
- Acura RLX
- Bentley Flying Spur
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 cargo space (15 vs. 13 cu ft).
Among 64 2020 midsize cars, the Acura RLX ranks 56th and the Bentley Flying Spur 61st for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2020 Acura RLX or the 2020 Bentley Flying Spur?
Measured by cost to drive, the Acura RLX. The Acura RLX is rated 23 MPG combined and the Bentley Flying Spur 15 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 Acura RLX vs. the Bentley Flying Spur per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Acura RLX and $3,950 for the Bentley Flying Spur.
Which has more cargo space?
The Acura RLX, with 15 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
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