2018 head-to-head · Two-Seater
2018 Audi R8 vs Porsche Boxster
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 2018 Porsche Boxster is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,370 a year to fuel (25 MPG), versus $3,292 for the 2018 Audi R8 (18 MPG). That's roughly $922 a year, or about $4,608 over five years.
Your numbers
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Fuel cost over 10 years
- Audi R8
- Porsche Boxster
Side by side
| Audi R8 | Porsche Boxster | |
|---|---|---|
| $3,292 | Your annual fuel cost | $2,370 |
| 18 MPG | Combined efficiency | 25 MPG |
| 14 MPG | City | 22 MPG |
| 25 MPG | Highway | 29 MPG |
| 497 g/mi | Tailpipe CO₂ (g/mi) | 353 g/mi |
| 3/10 | EPA fuel economy score | 5/10 |
| 3/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 5.2L 10-cyl | Engine / motor | 2.0L 4-cyl turbo |
| 7-speed dual-clutch | Transmission | 7-speed dual-clutch |
| RWD | 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 R8 vs Porsche Boxster across model years
- Audi R8
- Porsche Boxster
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
Among 30 2018 two-seaters, the Audi R8 ranks 18th and the Porsche Boxster 8th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Audi R8 or the 2018 Porsche Boxster?
Measured by cost to drive, the Porsche Boxster. The Audi R8 is rated 18 MPG combined and the Porsche Boxster 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Audi R8 vs. the Porsche Boxster per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,292 for the Audi R8 and $2,370 for the Porsche Boxster.
Audi R8 vs Porsche Boxster in other years
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