New Porsche 911 Carrera 4 delivering power to the road effectively

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It is possible to have a lot of power and yet not be able to move anything. So how can the power of the new 911 Carrera 4 be delivered to the road effectivel...

Porsche Traction Management, PTM, Carrera 4, 911, C4, All wheel drive, All-wheel, Technology, Traction, Driving assistance
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