I sold C6s new, and nearly owned one myself... long story, but wound up with an X5.

The fit and finish is still not even close to MB standards. Good value, yes, but if you parked my Silver Arrow which oozes fit and finish next to a C6, there's really no comparison.

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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!