In marketing materials preceding its launch in 1998, SAAB claimed that 1,100 changes were made to the Saab 900 (their previous generation compact) in order to produce the new Saab 9-3. Improvements were made to the body for safety and styling, the suspension for better handling, and the engine to increase power. Some of the Saab 9-3 parts were the same as the 900, but not many. Perhaps the most exciting thing to happen to this new car was the addition of the Viggen model. It was powered by a turbocharged 2.3L engine producing 230hp, sitting on stiff lowering springs and firm struts, mated to a 5-speed manual transmission with heavy duty clutch and specially engineered drive shafts, all governed by a state-of-the-art ECU. Only 4,600 were made, and over half of them were exported to the US. Later generations also included performance variants, all-wheel drive after 2008, and the choice between a sedan, convertible, or wagon body style.