As I understand it, Motability is currently exempt from paying VAT on all cars it purchases to lease out. The cars themselves need to be substantially and permanently adapted to qualify as VAT exempt. As I understand it, as you and not Motability are buying the extras then the adapted rule applies, ie if you’re not in a substantially adapted car, you need to pay the VAT.
It’d be interesting to see if anyone has been treated differently.
I'm Autistic, if I say something you find offensive, please let me know, I can guarantee it was unintentional.
I'll try to give my honest opinion but am always open to learning.
Mark