Here are the very first spy shots of the upcoming new Audi A6 Avant, due for launch in March 2005. The prototype has no disguise at all and got caught during secret road tests inSouthern Europe. Compared to the current A6 wagon, the new A6 Avant has grown considerably in its dimensions and features the new Audi front grille. The lightweight luxury wagon is set to rival BMW's 5-Series Touring and as such, major suspension pieces are made of aluminum. The new wagon is equipped with air suspension, Adaptive Cruise Control (ACC) and curve (adaptive) headlights.