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m6board.com: BMW M6 accelerating in tunnelhttp://www.m5board.com/vbulletin/showthread.php?t=64639&highlight=bmw+m6+tunnelDSC off, MDM off, S6 on and P500S on = not too much grip when cold weather. Car is a 2005 BMW M6 diriving on Koenigsegg premises in Sweden.