2018 head-to-head · Subcompact Car vs Compact Car
2018 Bentley Continental Supersports Convertible vs Rolls-Royce Dawn
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 · 6.0L 12-cyl turbo · 8-speed automatic · 14 MPG
RWD · 6.6L 12-cyl turbo · 8-speed automatic · 14 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2018 Bentley Continental Supersports Convertible (14 MPG) costs about $4,232 a year to fuel and the 2018 Rolls-Royce Dawn (14 MPG) about $4,232.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Bentley Continental Supersports Convertible
- Rolls-Royce Dawn
Side by side
| Bentley Continental Supersports Convertible | Rolls-Royce Dawn | |
|---|---|---|
| $4,232 | Your annual fuel cost | $4,232 |
| 14 MPG | Combined efficiency | 14 MPG |
| 12 MPG | City | 12 MPG |
| 20 MPG | Highway | 18 MPG |
| 86 cu ft | Passenger volume | 100 cu ft |
| 7 cu ft | Cargo volume | 9 cu ft |
| 627 g/mi | Tailpipe CO₂ (g/mi) | 634 g/mi |
| 1/10 | EPA fuel economy score | 1/10 |
| 1/10 | EPA greenhouse gas score | 1/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 6.0L 12-cyl turbo | Engine / motor | 6.6L 12-cyl turbo |
| 8-speed automatic | 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.
Bentley Continental Supersports Convertible vs Rolls-Royce Dawn across model years
- Bentley Continental Supersports Convertible
- Rolls-Royce Dawn
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 Rolls-Royce Dawn has more passenger space (100 vs. 86 cu ft); the Rolls-Royce Dawn has more cargo space (9 vs. 7 cu ft).
Frequently asked questions
How much does it cost to fuel the 2018 Bentley Continental Supersports Convertible vs. the Rolls-Royce Dawn per year?
At 15,000 miles a year with $3.95/gal premium gas, about $4,232 for the Bentley Continental Supersports Convertible and $4,232 for the Rolls-Royce Dawn.
Which has more cargo space?
The Rolls-Royce Dawn, with 9 cu ft of luggage volume versus 7 cu ft (EPA interior volume index).
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