performance boxter??

[The Deuce]

The GT2 and GT3 Sam speak of are 911's. The GT2 is one darn fast car.

I didn't see the car you are talking about, but I do know you can get a fixed wing for the back of a Boxster factory installed from Porsche. I've never seen one in person, but if you go throught the build your own page at porsche.com, you can see if you can build the car you saw. I know there are a number of different tire combinations as well on that, and companies luke RUF and AC Schnitzer do high performance versions of that car.

My hope is that you saw one of those, and not some riced our Boxtser. But you mentioned it looked well done, and that makes me think it was either factory done, or by a high $ German tuner. Hope this helps.