Question: When did the new shape audi a6 come out?

Disambiguated questions and answers:
context: In February 1997, the introduction of a new A6 ("Typ" 4B), based on a new design automobile platform – the Volkswagen Group C5 platform, with a new range of engines was announced and appeared in March at the 1997 Geneva Motor Show. This new A6 moved up a notch in quality, and was marketed in the same categories as the BMW 5 Series and the Mercedes-Benz E-Class. The redesigned body presented a modern design, with a fastback styling which set the trend for the Audi lineup, and gave the relatively large saloon an aerodynamic shell with a low coefficient of drag of 0.28.
question: When did the new shape audi a6 get announced to be coming out?
short_answers: February 1997
wikipage: Audi A6
context: In February 1997, the introduction of a new A6 ("Typ" 4B), based on a new design automobile platform – the Volkswagen Group C5 platform, with a new range of engines was announced and appeared in March at the 1997 Geneva Motor Show. This new A6 moved up a notch in quality, and was marketed in the same categories as the BMW 5 Series and the Mercedes-Benz E-Class. The redesigned body presented a modern design, with a fastback styling which set the trend for the Audi lineup, and gave the relatively large saloon an aerodynamic shell with a low coefficient of drag of 0.28.
question: When did the new shape audi a6 first come out at the Geneva Motor Show?
short_answers: March at the 1997 Geneva Motor Show
wikipage: Audi A6

Long-form answers:
knowledge: content: Audi unveiled a facelifted "C6" Audi A6 on 12 August 2008, at the Moscow International Motor Show. The refresh incorporates some modern Audi design cues to keep the A6 current with the rest of the Audi lineup.
wikipage: Audi A6 C6 facelift
content: There are minor cosmetic changes to the front and rear lights which now have daytime running LEDs, the taillights extend towards the center of the trunk lid and pinch off at the license plate mount
wikipage: Audi A6 C6 facelift
content: Audi unveiled the 2015 C7 mid-life facelift at the 2014 Paris Motor Show.[46] The refresh includes styling tweaks to the car's exterior
wikipage: Audi A6 C6 facelift
content: In 1994, the latest generation (C4) of the Audi 100 received a facelift and was renamed as the Audi A6
wikipage: Audi A6 C6 facelift
long_answer: In 1994, the latest generation of the Audi 100 received a facelift and was renamed as the Audi A6. Then, in February 1997, the introduction of a new A6 based on a new design automobile platform was announced and appeared in March at the 1997 Geneva Motor Show. The redesigned body of the A6 presented a modern design with a fastback styling which set the trend for the Audi lineup. Then, in 2008, Audi unveiled a facelifted C6 Audi A6 at the Moscow International Motor Show. The refresh incorporated some modern Audi design cues to keep the A6 current with the rest of the Audi lineup. These included minor cosmetic changes to the front and rear lights and having the taillights extend towards the center of the trunk lid and pinch off at the license plate mount. Then, in 2015, Audi unveiled the 2015 C7 mid-life facelift at the 2014 Paris Motor Show. This refresh included styling tweaks to the car's exterior.