2016 head-to-head · Two-Seater
2016 Audi TT Roadster vs Porsche Cayman
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 · 2.0L 4-cyl turbo · 6-speed dual-clutch · 26 MPG
The 2016 Audi TT Roadster is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, it costs about $1,788 a year to fuel (26 MPG), versus $2,370 for the 2016 Porsche Cayman (25 MPG). That's roughly $582 a year, or about $2,908 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 TT Roadster
- Porsche Cayman
Side by side
| Audi TT Roadster | Porsche Cayman | |
|---|---|---|
| $1,788 | Your annual fuel cost | $2,370 |
| 26 MPG | Combined efficiency | 25 MPG |
| 23 MPG | City | 21 MPG |
| 30 MPG | Highway | 30 MPG |
| 336 g/mi | Tailpipe CO₂ (g/mi) | 359 g/mi |
| 6/10 | EPA fuel economy score | 6/10 |
| 6/10 | EPA greenhouse gas score | 6/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 3.4L 6-cyl |
| 6-speed dual-clutch | Transmission | 7-speed dual-clutch |
| 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 TT Roadster vs Porsche Cayman across model years
- Audi TT Roadster
- Porsche Cayman
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 32 2016 two-seaters, the Audi TT Roadster ranks 4th and the Porsche Cayman 10th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2016 Audi TT Roadster or the 2016 Porsche Cayman?
Measured by cost to drive, the Audi TT Roadster. The Audi TT Roadster is rated 26 MPG combined and the Porsche Cayman 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2016 Audi TT Roadster vs. the Porsche Cayman per year?
At 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, about $1,788 for the Audi TT Roadster and $2,370 for the Porsche Cayman.
Audi TT Roadster vs Porsche Cayman in other years
More 2016 comparisons
Audi TT Roadster vs…
Or compare the 2016 Audi TT Roadster with anything else: