Since it's dropped its former V-6 engine option, the turbo four-only Audi TT fares better than almost any sporty car when it comes to fuel economy.
The Environmental Protection Agency (EPA) rates the 2011 Audi TT at 22 miles per gallon in the city cycle, and at 31 miles per gallon on the highway. The numbers hold true whether the TT's four-cylinder is paired with front-wheel drive and a six-speed automatic transmission, or all-wheel drive and a dual-clutch "S-tronic" gearbox.
The numbers also hold true for the TTS model, which sports 54 horsepower more than the stock car's 211 hp.
Audi hasn't announced any plans for more fuel-efficient TT sportscars, but it has shown a new R4 coupe concept, complete with electric propulsion. However, it hasn't said whether the R4 will replace the TT or if it will be produced alongside a new TT in the future.