Audi claims 25 mpg combined for the A3. We found it to actually be a bit better, getting almost 30 mpg during our tests. And, no, we weren't babying the throttle. We took long-distance drives, short spurts around the city, and even took it up north to whip it around some curves. It won't win any awards for its fuel economy (that's what the TDI version is for), but neither will it drain your pockets.