https://www.beamng.com/posts/981463/ READ WHOLE THREAD. You will find information useful and a hierarchy tree graphic for which to abide by. Graphics should be done in BC7 format I believe it is (double-check, it's on the change log for 0.15.x), and only .dds extensions for gfx files. Please keep DRAW CALLS to a minimum for best performance. Please read up and familiarize self with DRAW CALLS, what they are, what they do to performance if you have too many (over 4000 = avoid at all costs, 3200 or less is best, even better if car is in view when number is taken). Game engine does much better batching and less state-change operations so is much more efficient now, and may even get better in the future, however, keep them to a minimum. This is what killed performance in my maps for the longest time, but a little work on the game engine, and that took 25fps to 70+ fps. Good luck with bringing your own assets, this community needs that. If you are building an incorporated town or city, please explain to me what you need model-wise in private and I may have something you can 'try out'. Best of luck, and the new graphics look nice. Keep in mind while you'll have to make your own normal textures, a lot of my road graphics in my maps I made myself (almost all of them), and they're 'free beer' to the community for use here with BeamNG (this abides by the prime directives defined in the EULA with this site and files hosted upon it). Keep your work backed up. I did have 98% of my stuff backed up within a week or three of losing my entire c: drive. Glad I did, but still, don't be me, backup WEEKLY. --Good luck!