It said something about car position... I'd like to guess that he is simulating shooting from the driver seat in a car.
Sorry, it has nothing to do with a car as in automobile, however, it IS a method that could be used from a car.
Can you break this down for me, I mean what exactly is he doing in this video?
He's demonstrating a hold method called Center Axis Relock or CAR for short.
It is effective, it does work.
Unfortunately, the camera man does a piss poor job showing the method, concentrating waaay too much on the target IMHO.
You get the best view of the grip/hold method at about 3:23 mark in the video.
For more information:
Wiki is a good place to start, might not be 100% accurate but it's a starting point. ( Wikipedia CAR Method
Couple of videos:
[ame="http://www.youtube.com/watch?v=lbg-Qo8djOA"]CAR Family Shoot by SafeArmsReview[/ame]