From the moment the first Mercedes-Benz CLS four-door "coupe" was introduced to the public, other German luxury automakers hit the drafting board. According to the German auto experts at AutoBild, Audi is just over a year away from unleashing its own cleverly packaged sedan. The A5 Sportback would be based off the A4/A5 platform, and takes a little of both models and melds them together. Audi parent company VW has already unveiled a four-door coupe version of the Passat destined for sale in the fall, so an A5 Sportback appears to be a safe bet. The A5 won't be the only four-door coupe in the Audi fleet either, as the A7 should arrive in 2010, and AutoBild mentions the arrival of a new A3 Sportback a year later.

If there is a Sportback edition of every odd-numbered Audi, an Avant version of the even numbered models, and an S and RS for all, it's easy to see how Audi plans to expand its product lineup by 18 models by 2015. The A5 is already handsome, but if the four-ringed automaker could add the practicality of four doors while keeping the coupe's good-looking lines, we foresee another hit for Audi. Click the read link below to view Auto Bild's CGI rendering of the A5 Sportback.

[Source: Auto Bild via German Car Blog]