Wabbit, I do hope that you are okay! My recent accident pales in comparison, where I just flew off a bump into the road onto the ground at 35kph. I just wound up with a hurt right knee and a stream of blood flowing down my left knee.
Did you get a make, model, year, liscence of the car?
Last year, I was hit by a car that did the exact same thing, as soon as he saw me stand up he split (from being stationary in the distance).
I don't quite understand how somebody can just drive off after having obviously seriously hurt somebody.