BYD are now on the scheme, but have very few dealerships or servicing so doubt that’s a compelling reason for Motability to not want Tesla.
Insurance groups I can see as an issue but Motability can factor that into a higher AP
Parts repairs etc are tesla actually worse than other EVs – They are all pretty bad as far as im aware!
I think the key issue is if Tesla want it – I guess Competition and smaller market share may influence that going forward!