Audi A3 Sportback S-line
The five-door A3 Sportback model was introduced in June 2004. The A3 Sportback is 80 mm (3 in) longer than the base three-door body, and includes improved rear cabin space and a larger luggage compartment (370 litres). It also received the new "single frame" front grille originally introduced in the A8 W12, which was later adopted across the whole A3 range.
In 2005 the "S line" trim level, offering new decorative elements, became available and the 3-door A3 received the same front end styling features as the Sportback model. For the first time, the A3 became available in the North American market, exclusively with the Sportback body, with the base 2.0 straight-4 TFSI.
Source: Wikipedia, 2011