Do APs always go up every quarter, is that a given? What happens if you order a car and then the APs go up before you collect it, do you pay the AP quoted at the time you ordered? If APs go down, do you still pay the price quoted at the time you ordered?
Injector, no, if you order a vehicle you pay the AP at time of signing irrespective of higher aAP,s at delivery. If the AP,s go down after you order, you can ask the dealer to re-order to the lower AP. Your physical car order does not change, just the dealers paperwork with Motability.
It used to be that AP,s would fluctuate each quarter, but the prices would be the same. Unfortunately over the past 4 years, interest rates have pushed prices upwards. They do not come down again.