New Engines, Double-Clutch Transmission and Electronically Controlled All-Wheel-Drive
New engines, all-wheel-drive systems, transmissions, interior features and exterior cues will mark the evolutionary advances of the new 2009 Porsche 911 Carrera 4 and Carrera 4S models upon their introduction this fall when they join the already announced two-wheel-drive 2009 Porsche 911 Carrera and Carrera S.
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