If I was in your shoes I would point out to your local dealer that a dealer further away has offered the pearl paint free of charge. Name the free of charge dealer to your local dealer and ask them to match the offer, pointing out that there will be servicing and MOT guaranteed, paid for by motability, in the coming years.
Let us know how you get on.
Daughters motability car Hyundai Tucson Ultimate self charging hybrid Serenity White Moss Grey interior.
My car SEAT Ibiza SE Tec 1.2 petrol TSI 2017.