German Flag Porsche Boxster S & Boxster

Aside from the wheel sets, which can be added as an option, the only way to identify a Boxster S head on from a non-S is by looking at the bumper between the two main side air-intakes to see if their is a third long and thinner central intake as seen on the black Boxster S below.

Porsche Boxster, Porsche Boxster S