The Audi A3 features a two liter turbo-charged engine that makes the car a nimble and quick performer. The turbo-charged engine runs on premium unleaded gasoline, and fuel is is inducted into the engine via a direct injection system. This powerful engine is mated to a six speed manual transmission. The engine produces two hundred horsepower at five thousand one hundred revolutions per minute; the engine produces two hundred seven pounds of torque at one thousand eight hundred revolutions per minute. These performance figures make this engine one of the most powerful available in a small car. The engine also features four valves per cylinder, in addition to the aforementioned turbo-charger. According to the Environmental Protection Agency, the turbo-charged engine returns twenty-one mile per gallon in city driving and thirty miles per gallon in highway driving. Audi has held over from the 2009 model the all wheel drive system, although the all wheel drive system is available only on the base two liter engine without the turbo-charger. The other major change from the 2009 model year is that Audi has decided to drop the six cylinder engine as an option on the A3. The 3.2 liter six cylinder was a smooth and powerful performer, producing two hundred and sixty-five horsepower. The negative aspect of that engine was that it returned only fourteen miles per gallon in city driving. Audi has elected for the 2010 model year to not make any major changes to the A3, but rather make the A3 a roomy, sporty wagon that is able to return good fuel economy in an attractive package.