With the new possibility of using modded buses as with the new amazing Italy map, I did notice one issue... that is the lenght of the checkpoints, my 45FT bus just simply isn't able to fit in them. So my suggestion would be to use a default bus stop size, but if the vehicle player chooses to go for doing the route is longer than the default bus stop size, then the bus stop box could increase by let's say lenght of the vehicle + 1.5 meters (to allow for a little bit of play) Simple visual explanation of what I mean:
