With a design based on the C6 Lignage Concept presented in 1999, the production version of the Citroen C6 was supposed to appear in 2001, when the last XM rolled of the production line. Sadly, this didn't happen and Citroen stood without a flagship model until 2005. Compared to its German competitors, the C6 takes advantage of its fastback styling, also being the only Citroen model with a c...
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