I kept my Skoda Superb 2 months under 5yrs and I received an extra £100 ontop of the 3 yr £600 GCB. If I’d of kept it for a full 5yrs I would of got an extra £300 on top of the 3 yr £600 GCB. So its not exactly pro rata.
For any cars excluding WAVs orders placed from 1 October 2022, the Good Condition Payment is £250 at the end of a three-year lease or £350 for a five-year lease.