The 2006 Audi A3 is a fun-to-drive five-door offering the versatility of a small SUV with the comfort of a luxury sedan. Equipped with a zippy 2.0-liter, direct-injection motor combined with tight European handling characteristics, the Audi A3 is a must-drive when shopping for a small luxury wagon. Adding even more to its allure is the fact that it can go three more miles on every gallon of fuel than the 2nd place runners-up.