Man, reading that was like I was there. I could actually FEEL the g-forces pressing my weight down toward the pavement.
I had a '67 Chevy Caprice at one time that could have competed with those two. I skinned up knees and elbows a couple of times because right after firing off the line at a green light, I thought the car wasn't moving and I got out to see what was wrong.
That wasn't G-forces...
...it was probably one of the wheels running over you.