HD: Porsche 911 Turbo (997) TipTronic vs BMW M6: M6BOARD.com
http://www.m5board.com/vbulletin/e63-bmw-m6-forum-bmw-m6-convertible-m6board-com/133552-high-definition-video-bmw-m6-vs-porsche-911-turbo-997-tiptronic.html#post1528339 : Porsche 911 Turbo (997) TipTronics vs BMW M6
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