Question: When did the new shape audi a6 come out?
Disambiguated questions and answers: question: When did the new shape audi a6 get announced to be coming out?
When did the new shape audi a6 first come out at the Geneva Motor Show?
answer: February 1997
March at the 1997 Geneva Motor Show
Natural Questions answer: 12 August 2008 (from the Wikipedia article "Audi A6")