If you believed you were insured on the car but weren't due to a mix up with the info and docs, and the Police charge you for driving without insurance or for lying to them, explore to possibility of using mistake as a 'defence' to your predicament.
As I understand it a mistake of fact is allowed, where as ignorance of the law is not, so while you wont have an excuse for 115mph, you might have one for the insurance part of it. I'm sure someone better informed will be able to correct me however.
Have you considered a career as a cab driver perhaps?