What do you take with you if you don’t have the letter ?
Nothing but a letter from the DWP showing that you have at least a year (or thereabouts, can’t remember 100%) left on your PIP, and the usual stuff like driving license etc.
As was said, you don’t need a Motability letter (we ordered 6 weeks ago after an early termination on our current car, done via phone – ordered new one next day with nothing from motability).
Prior: SEAT Ateca Xcellence Lux 1.5 TSI DSG MY19, VW Golf GTE PHEV DSG MY23
Current: Hyundai Ioniq 6 Ultimate
Next: we'll see what's available in 2028.