Bang on Rene. The same situation arose when Mercedes were on the scheme where a customer could not add the premium packs as motability considered it a trim line and not an extra.
Exactly, i actually remember running into the same issue because we wanted the Matrix LED lights (but couldn’t, i think they called it advanced high beam or something similar), after they removed the “plus” variants from the scheme.
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.