2015 head-to-head · Subcompact Car
2015 Audi TT Coupe vs Porsche 911
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 2015 Audi TT Coupe is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,279 a year to fuel (26 MPG), versus $2,576 for the 2015 Porsche 911 (23 MPG). That's roughly $297 a year, or about $1,486 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 Coupe
- Porsche 911
Side by side
| Audi TT Coupe | Porsche 911 | |
|---|---|---|
| $2,279 | Your annual fuel cost | $2,576 |
| 26 MPG | Combined efficiency | 23 MPG |
| 22 MPG | City | 20 MPG |
| 31 MPG | Highway | 28 MPG |
| 74 cu ft | Passenger volume | 70 cu ft |
| 13 cu ft | Cargo volume | 5 cu ft |
| 345 g/mi | Tailpipe CO₂ (g/mi) | 386 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium 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 Coupe vs Porsche 911 across model years
- Audi TT Coupe
- Porsche 911
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 Audi TT Coupe has more passenger space (74 vs. 70 cu ft); the Audi TT Coupe has more cargo space (13 vs. 5 cu ft).
Among 36 2015 subcompact cars, the Audi TT Coupe ranks 18th and the Porsche 911 23rd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 Audi TT Coupe or the 2015 Porsche 911?
Measured by cost to drive, the Audi TT Coupe. The Audi TT Coupe is rated 26 MPG combined and the Porsche 911 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Audi TT Coupe vs. the Porsche 911 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,279 for the Audi TT Coupe and $2,576 for the Porsche 911.
Which has more cargo space?
The Audi TT Coupe, with 13 cu ft of luggage volume versus 5 cu ft (EPA interior volume index).
Audi TT Coupe vs Porsche 911 in other years
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