How do you perform the PIT maneuver?

               ,--------------.
    ________.,'___fleeing car__`._____.
   !_.____,--._|_____.|_____,--._____|
    \____|    ||______|____|    |X___|- o O 0
          `--'              `--'      

The X is the ideal area to place the front of the police car's bumper while driving along side and at the same speed of a fleeing car. You would then crank the police car into the fleeing car at this point while keeping the same speed. This will effectively turn the fleeing car 180 degrees (or more) right in front of the police car. Of course, the higher the speed, the more dangerous and unpredictable the outcome.

A view from the top:

    ___-````````--____
---/   |     8  | |  *|
   |   |     8  | |   |   police car
   |   |________| |  *|
---`-===---------===--'
                    _________________  
                ---'   |        | |  * 
                   |   |        | |   |   fleeing car
                   |   |________| |   | 
                ---`-===---------===-*