2013 Porsche Carrera 4 gets upgraded AWD system

Porsche will unveil the new 2013 911 Carrera 4 with the latest version of its active all-wheel drive system at the Paris Auto Show next month. Available in four models (911 Carrera 4 and911 Carrera 4S, each as Coupé and Cabriolet), it boasts a 44 mm wider rear body and 10 mm wider rear tires than the regular two-wheel-drive 911.