Wow.
This is fantastic! My experience for the first few minutes was of everything being obliterated under the fiery wrath of my hand guns. When I discovered that making fists would let me drive along the ground, it opened the door to a whole new level of game play carnage! I found subtly rolling up alongside other vehicles only to knock them violently off the road immensely satisfying.
When I saw that little arm come out and slap on the police lights on I almost died.
This is beautiful, well done!