Saab's 9-3 sedan gets a redesigned exterior for 2008, and it will gain all-wheel drive later in the model year. It's 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. The Aero is the uplevel trim in all body styles, and each comes with a 2.8-liter turbocharged V-6 engine.