The 9-3 is positioned as Saab's entry-level sedan, and it competes with the Audi A4, BMW 3 Series and Volvo S60. The 9-3 is available as a convertible, SportCombi (read, wagon) and sedan. Base models come with a turbocharged four-cylinder. The Aero is the uplevel trim in all body styles, and all Aeros come with a turbo V-6. Saab's all-wheel-drive system, which the automaker calls XWD cross-wheel drive, is available on certain models.