FuelFacts

2008 Audi TT Roadster MPG & Specs — Real-World vs EPA, All Trims

Every gas trim of this model takes premium.

25
MPG combined (22 city / 29 hwy)
$2,808
est. fuel / year (today's prices, 15k mi)
Premium
gas type

Is the 2008 Audi TT Roadster good on gas?

At up to 25 MPG combined, the 2008 Audi TT Roadster is better than average for a Two Seaters — that class averages about 19.4 MPG across 2,500 EPA-tested versions, so it's a good pick on fuel for its size.

Real-world MPG vs the EPA number

The EPA figures above come from a standardized dynamometer test, not the open road — real-world MPG typically runs a bit lower depending on your driving, climate and terrain. That's true of every car on this site, old or new.

At today's AAA national average price — $4.68/gal for premium gas as of 2026-07-05 — the most efficient trim runs about $2,808/year (roughly $234/month, about $18.72 per 100 miles) at the EPA's assumed 15,000 miles/year, using an estimated 600 gallons a year. We don't estimate a cost-per-fill since exact tank size isn't in the public EPA dataset, but the per-100-mile figure scales to any tank. Current national average gas prices →

2008 Audi TT Roadster trims & fuel economy

Trim (engine / transmission)FuelMPGFuel/yr (today's price)
2.0L 4-cyl, S6 automatic, FWDPREMIUM25$2,808
Where the EPA lists premium, that’s the fuel the maker specified for the mileage test — many such engines run on regular with slightly less power/MPG. Whether premium is required or just recommended is an owner’s-manual detail the EPA dataset omits, so we don’t guess it.

2008 Audi TT Roadster specs

What the EPA test-car listings record for this model year — every combination sold is a row in the trims table above.

Engine options2.0L 4-cyl turbo
TransmissionS6 automatic
Drive typeFWD
EPA body classTwo Seaters
FuelPremium

Other years of the Audi TT Roadster

2023 Audi TT Roadster2009 Audi TT Roadster2006 Audi TT Roadster2005 Audi TT Roadster2004 Audi TT Roadster2003 Audi TT Roadster2002 Audi TT Roadster2001 Audi TT Roadster

Similar cars (Two Seaters)

2008 BMW Z4 3.0i2008 BMW Z4 3.0si2008 BMW Z4 Coupe2008 Chrysler Crossfire Coupe2008 Chrysler Crossfire Roadster2008 Mercedes-Benz SLK280

Cars that take premium · Cheapest cars to fuel · Where fuel grade depends on the trim · Fuel guides

1 trim(s) · EPA FuelEconomy.gov data retrieved 2026-07-24 · fuel prices AAA national average as of 2026-07-05.