Nobody has ever made a Tesla mod. The closest thing there ever was was a Tesla, but it’s private and doesn’t work anymore.
There is a Tesla Model S mod for BeamNG, except it's in a mesh-slap quality and most likely doesn't work in 0.15. You don't want that one at all. On the other hand, there is a Tesla Model X mod used by some YouTubers, except that one is private. There's no way to obtain it at this time.