Our first (and current) Motability car took around 10 weeks.
Our next car was ordered in November 2021, and is due to be delivered at some point in the next 8-12 weeks.
So we went from 2.5 months to probably around 16 months.
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.