F*cking speedbumps. Im glad your car wasnt damaged.
I had a pretty similar experience with an unpainted speed bump in the middle of the night not long ago. Slowed from 50mph to about 40 when i saw it, then flew over it in my Golf. The car landed on its nose and the engine cut off. I thought i'd really fucked the car up but one twist of the key and it fired up. No body damage either