I've had my Black Box for 5 months and I am a careful driver, I went out once late at night after the curview they give u (which btw is pure bs I've spend 12% driving at night and have a score of 40 out of 100 which makes sense) I was driving below speed limit by about 5mph as there was a police car in front of me, yet the morning after I had my speeding go down from 100 to 90 which didn't make sense especially as the road I was driving down is full of speed cameras. My acceleration on the other hand is 15/100 when I accelerate as I was tault to by my driving Instructure, I have a 1.25lt so on hills I put my foot down slightly but I'm not please at all with my Expirence with this Black Box and I pay £2700 for my insurance at the age of 18 which is more than any1 ik