'Monumentally stupid' driver tried to outrun police in 100mph M5 chase He also travelled at double the speed limit on 30mph roads (Image: Getty Images) GET THE BIGGEST STORIES FROM ACROSS SOMERSET STRAIGHT TO YOUR INBOXInvalid EmailSomething went wrong, please try again later. SIGN UP When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice A motorist who tried to outrun police at 100mph on the M5 has been told to write a letter to officers to apologise for his actions.