hmmmmmm, all the pics I currently have are with the top down:
the only shot I have found is from the PCA website from the Chesapeake region. If you go to this link and look at the fifth picture from left you can see her Boxster from the rear with the top up.
http://pcachs.org/photos_and_movies/2008/tour_cozy_inn_gg/index.html
if you don't know the new PSE from the rear and clear third brake light or the different front facia or recognize the black front windwhield frame it looks like any other GT silver Boxster. Even the back says Boxster S, only on the door sill does it say Spyder RS60.