I've given you a reply about Hastantyo's buses made for MM2 in PM. But however, you can look through his projects topic
here, no more updated (dunno if he's still modeling nowadays).
So this bus model is by Hastantyo? He made a Scania Euroliner bus model, which didn't succeeded to let work in MM2 (maybe because of too much polygons). Unfortunately, the 3D model images in his topic are now gone.