For speeds up to Limit +10% + 9mph (so 64 in a 50) and provided you have not done one in the last three years, you will almost certainly be offered a Speed Awareness Course. As has been said, around £100, half a day of your time and no points. Do not fail to reply to the request for driver's details within 28 days (failure to do so means a court appearance, a hefty fine, six points and insurance grief for about five years). Some insurers (Admiral and their associated brands) ask for details of Speed Awareness Courses to be declared so check with your insurer. I should not consider trying the "Alex Ferguson" defence. It rarely succeeds and is simply not worth the hassle when a course is almost certain to be offered.