Visually, the car is being enhanced with larger front air intakes and new fog-lights in the front bumper, which give a more aggressive look. Sportier variants get a larger front lip but it remains uncertain whether the potent Turbo and GT2 models will receive the same upgrades.
Porsche will also be adding fuel-saving direct injection technology to its engines, which should see an improvement in fuel economy of between 10 and 15%. The other big change is the inclusion of a DSG-style dual-clutch gearbox as an option. Most models will also come with a slight power increase in the range of 5-25hp.
Source: Motor Authority