yes, provided your Grandmother is receiving full DLA component & that the payments are paid direct to Motability and that they feel you are eligible
Motability is a charity run operation, NOT a gov't scheme so you choose how you spend the allowance.
don't forget you hand the car back after 3 yrs and any Advance Payment is lost so it's not all rosy
if anyone feels aggrieved by all this 'cars for nothing' nonsense you could always apply for free car tax via the Blue
badge
just remember some people have suffered & this is one way of being mobile again regardless of what cars people choose.
our first
Ibiza Cupra was an ex-Motability car, 2.0 8v, definitely not driven by anyone with a gammy left leg!