As compact German sports sedans go, the 2015 Audi A3 2.0T Quattro has adequate, but not stellar, fuel economy. The EPA rates the 2.0T with Quattro all-wheel drive—for now, the top powertrain until the hot-rod version S3 arrives—at 24-mpg city and 33-mpg highway. While that combo beats the larger, same-engined A4 2.0T Quattro by 4 [...]

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