I was rear ended. During the impact, which was enough to accelerate my vehicle from 9 mph to 36 mph, the steering wheel came completely off of the car and hit me in the head. The steering wheel was in the back seat immediately following the impact and my vehicle was traveling at 36 mph with no way to steer out control it and no airbags in front of me in case of a secondary collision. This happened on a busy interstate with dozens of drivers endangered by my out of control vehicle. Traffic had slowed for construction and it was a miracle I wasn't further injured or caused injury to anyone else. Toyota sent an inspector to look over the vehicle, and it may still be available on the wrecker lot.