In the current climate I don’t think that any dealer is going to be stuck with a car and, arguably, a last minute cancelled Motability order that can be sold to a private customer could be a win win for a dealer ?
My guess is as thing are at the moment dealers would have their fingers crossed behind their backs hoping you do cancel at a later date.
The car I ordered in October has already had its retail price increased by about £850 and sure to be another increase by the time the car is delivered so should I cancel that one the dealer, as Dire Straights would say would be getting “money for nothing” that is unless the manufacture knows its a Motability car and wouldn’t honer the delivery price previously agreed.