filming car scenes in movies

saw a movie shoot from our condo today. not sure which movie. the scene was a car chase (we think). the coolest part though was the use of a porsche cayenne turbo modified to be a moving movie camera. it looked so freakin cool.... aileen will post pics of it later (got it aileen?).

in the meantime, here's a link to the company that makes it. pursuit systems. so awesome.