Actually the real version has tires that fat, I just chose some that I could be certain would work when I did the tire fix. So your tire fix is better than mine Also, DM him and/or make it clear the update will be released if he doesn't prohibit it, as that way if he is active, he can see it and make his decision, whereas if he isn't active, you're not left waiting an eternity to update an abandoned mod.
I'm no good with modding, especially in the area of Blender. If anyone knows how to change things, add things using blender, feel free with of course permission from CaptainW if you get one. The one thing i would like is Working Glowmaps which this mod has never had ever. Again, no idea how i go about that.