I've ported all the old models back into the new surface version, updating a few along the way. Some buildings (silos, Barnets garages, etc) are still placeholders but better that than nothing. 3d grass was also added.
There's nothing in the old v0.3.5 version that isn't in this version, so that version isn't included anymore.
There are also 3 layouts now (1B, 2C, A) out of the 9 possible at the track (A, B, C, 1A, 1B, 1C, 2A, 2B, 2C). I'll add in all the layouts eventually along with some reverse layouts, but that process takes a long time.