August has been a very busy month for Porsche
. The new '991' series of the 911 has just been officially revealed in base form and our spy shooters have just snapped the latest photos of the 911 Turbo Cabriolet prototype testing around the Nurburgring
. The upcoming generation of the 911 Turbo Cabriolet should arrive on the market in 2013 complete with a twin-turbocharged flat-six engine, new active rear spoiler and additional cooling vents all around.