Speaking of the new car, Dürheimer said, “‘it will be even more competent, even sexier, even more unique. The design can of course only be evolutionary, but beneath the skin, almost anything is possible”. The 2012 Porsche 911, known internally as ‘project 991’, will feature a few radical departures from the 911’s long-running classical styling.
The changes are out of necessity more than anything, but they will be noticeable. First, pedestrian protection rules in the EU will require a change to the nose section of the car, likely meaning a larger and more collapsible bumper section. The rear of the car will also be changed, but for aerodynamic improvement.
Clear differences between the 998 and the current 997 model are the more upright headlights, a slightly longer body, and the side mirrors now positioned at the side of the doors and not at the window.
Source: Motor Authority