2025 Audi A3 S Line Review. If you’re unfamiliar with the german luxury car manufacturer’s nomenclature, the letters s are affixed to sporty versions. The 2025 audi a3 has one sole engine:

With a revised design, more standard kit and some pretty cool new features, does the a3 have what it takes to stay at the sharp end of its dinky little segment? For more performance, consider the s3 (reviewed separately) which amps things up considerably with an additional 127 horsepower and sportier handling.