I don’t think lower AP’s are currently on Motability’s radar given the rather ominous forecast on Motability’s FAQ’s page (updated today, 1st September 2020):
However, social distancing and disrupted supply chains from manufacturers mean factories are producing fewer cars than usual which will result in a shortfall of new car supply in the near future. It’s possible that deliveries of some new cars will be delayed. Others may simply not be available for the foreseeable future. And prices of other cars may, sadly, have to rise and this is likely to continue over the coming months.
It has the potential to get worse before it gets better (or should that be ‘if’ it gets better, which I honestly doubt somehow).