New Porsche 911 Carrera 4: Part 2 - red line of performance

Check out the next instalment in the 'red lines' series, where Gordon Robertson puts the new Carrera 4 through its paces at the Porsche Experience Centre in Silverstone. Watch him chat through the car's technical innovations as he demonstrates some of the features. Follow the red line and build your own 911 at porsche.co.uk/redlines