Porsche released today a new presentation video for the latest generation 2012 911 Carrera 4S. The German carmaker says that the new 2012 Porsche 911 Carrera 4S is faster, lighter and more efficient in comparison to the previous generation of the sports car. Equipped with the Porsche Traction Management (PTM), the 2012 911 Carrera 4S offers the performance of the 400 hp 3.8-litre engine with the benefits of an all-wheel-drive system.