Black Porsche scenes is very similar unused scenes from TJ Hooker "grand theft auto" episode :

http://www.youtube.com/watch?v=Ep5aYsEb0Rk

By the way Waserspeier, nice website indeed, it has lots of unedited videos of well known and not that known movies, i would really like to know where they are from.

Hi Wasserspeier, i have absolutely no idea for those Porsches and about the Mustangs, well to start of with i think it is a Chevrolet Camaro, it is not a Ford Mustang for sure, i think it is a scene from Bad Boys 1 in where a muscle car chases a Chevy Step van, i dont see the car in imcdb so perhaps we are missing it.

http://www.imcdb.org/vehicle_115473-Chevrolet-Step-Van-P-20.html

Hi...

I found this interesting site with lots of clips from Hollywood movies (e.g. Bad Boys II. New and old stuff):
http://www.thoughtequity.com/

There are action scenes of car chases, too. But I can't find out, for which movies this clips have been made.

Do you know the names of the movies with this scenes???

Chase with white Porsche:
White Porsche 1
White Porsche 2
White Porsche 3
White Porsche 4
White Porsche 5
White Porsche 6

Chase and crash with black Porsche:
Black Porsche 1
Black Porsche 2
Black Porsche 3
Black Porsche 4
Black Porsche 5
Black Porsche 6 and crash

Mustang on bridge:
Mustang 1
Mustang 2

Bye,
Wasserspeier