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    Porsche Technical Animations PTM, PDK and DFI - GTChannel

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    GT Channel

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    http://gtchannel.com for more car videos. Porsche Technical Animations PTM, PDK and DFI Driving footage and animations illustrating thePorsche Traction Management (PTM), Porsche Doppelkupplungsgetriebe (PDK) double-clutch gearbox and the Direct Fuel Injection.