There is no road tax payable for higher rate mobility claimants. None, ever.
Kim is talking about buying the car after the lease (and her sons mobility claim that’s not expected to be renewed) runs out.
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.