As the smallest Audi, the 2013 A3 is relatively fuel efficient. But its the TDI turbodiesel variant that really delivers the goods, with a combined 34-mpg EPA rating that many owners say is lower than their real-world daily average. It's made up of a 30-mpg city rating and a remarkable 42 mpg on the highway.
Our editors once logged 45 mpg in steady highway use, an almost unthinkably high number for a German luxury vehicle that holds four people. In steady stop-and-go traffic, we saw 30 mpg and better.
In 2015, Volkswagen admitted diesel engines in this model illegally cheated federal tests and polluted beyond allowable limits. As part of unprecedented settlements with federal and state governments, Volkswagen agreed to buyback from owners diesel-equipped models of this vehicle. To determine eligibility for all affected Volkswagen, Porsche, and Audi models, Volkswagen set up VWDieselInfo.com for owners. (Owners of affected vehicles can enter their VIN numbers to see if their cars are eligible for buyback.)
The regular 2.0-liter turbo gasoline engine is rated at 24 mpg combined when ordered with the S tronic dual-clutch gearbox and front-wheel drive. The quattro all-wheel drive option cuts your city mileage by only 1 mpg, so there's very little penalty for the improved performance and safety of powering all four wheels.