The Audi A3 comes as a sedan or cabriolet, and your choice of a 170-horsepower 1.8-litre 4-cylinder turbo or a 220-horsepower 2.0-litre. Essentially, the A3 has something for everyone. Thrill-seekers will prefer the S3, whose 2.0-litre turbo generates 292 horsepower. Meanwhile, tree huggers can turn to the A3 Sportback e tron, a plug-in hybrid.