The Class 47 Maxed Out achievement came with the Northern Trans-Pennine DLC. It does not seem to work for me. I have reached 75 mph with the Class 47, and even exceeded it by 1 or 2 mph, on several occasions. I have done this also in the 80 mph restriction area to be sure that it was 'legal' to reach 75 mph. Does anyone else have the same issue? Is this is known issue perhaps? What I also noticed was that a number of people do have the achievement - however, all of them (as far as I remember correctly) got that achievement BEFORE the official release of the NTP DLC! That would make me think that there is a 'glitch' somewhere that allows the achievement to be obtained in an incorrect manner, and at the same time perhaps prevents it from being obtained in a correct manner.