What we have here though, is a rather interesting duel between an E63 M6 against an F06 M6 Gran Coupe. As stock, the E63 came with a legendary engine, one developed back in the days when BMW was ...

There's nothing quite like a really nice exhaust system being pushed to the max on a $100K car. M6Board.com brings us this video of a BMW M6 on the dynamometer at SuperSprint's facility in Italy.