The Audi A3 is one of the most popular compact premium cars and still dominates despite the introduction of previously non-existent rivals like the BMW 1-Series and Volvo C30. Relatively roomy and with class-leading build quality the second-generation A3 is a desirable first step on the premium car ladder. Comfortable and refined, it may not be as good to drive as newer rivals but is available with a wide range of excellent petrol and diesel engines. In mid-2005 it was facelifted to look more like the five-door Sportback version and now there's an eco-friendly model which emits 119g/km of CO2.