If you ever wanted to sit on a real fast office chair... you probably want to consider buying one of these:

 
built from a Lamborghini Diablo GT chair...

"Race Chairs brand office furniture is the perfect collection for the performance minded or motorsports obsessed individual.  Our offerings are unique conversation pieces that give a subtle yet distinctive high tech atmosphere to any room.

Our chairs are made from the authentic high performance seats from exotic racecars such as Ferrari, Maserati, Lamborghini, and Porsche.  From our unique connection to the motorsports world, we are able to acquire a unique and everchanging inventory. Our Carbonfiber desks are an industry first and our accessories collection and one-off motorsports memorabilia pieces truly complete the decor while acting as functional pieces in the room."

It's not cheap but it has style :-))

Source: http://www.racechairs.com/default.asp