Motion blur question used in Flash

How is the car effect achieved in the following Flash example:

It is the new Starsky & Hutch flash animation on the yahoo home page.

The am looking to do something similar with an animation I’m currently working on.

It looks like a motion blur was applied to the image of the car and then imported with a tween applied moving the car from left to right? Can anyone provide some insight on this effect? Thanks.

-Dman100-