Am I reading Statistical Release ? Vehicle Licensing Statistics 2012 - Page 3 of 10 Figure 1: Age of vehicles, right?
If it has a 2nd MOT at 4 it's got about 50/50 chance of a 3rd at 5. Which is way better than the odds for 1st to 2nd.
How many don't even get a first MOT? 1 in 2?