Here are a couple more Motability Price guides from the same era. Two ajoining quarters this time, to directly compare the AP changes from one quarter to the next.
Q1 2008:
https://forum.whichmobilitycar.co.uk/wp-content/uploads/2021/01/2008-Q1-CPG.pdf
and Q2 2008:
https://forum.whichmobilitycar.co.uk/wp-content/uploads/2021/01/2008-Q2-CPG.pdf