If you didn't catch this week's Fifth Gear, here's Tiff Needell putting the new Porsche 911 through its paces. Output on the 2009 911 Carrera S with its 3.8-litre power unit is up by 30 bhp to 385 bhp (283 kW). With this extra power, the Carrera S Coupé now offers a top speed of slightly over 300 km/h or 186 mph.