I’ve seen this type of pricing many times through the years. Usually referred to as “supply and demand” . There are very little of “x” available; rather than take “x” off the market and therefore out of the shop window you increase the price to an extent that no-one would buy it due to the inflated price.
AP’s are extremely high just now and I’m genuinely concerned that we have to deal with this on top of our daily living travails but it will pass. If not Motability will lose customers.