Try https://www.stellantisandyou.co.uk/motability#whatis They offer delivery.
To be honest I found some Peugeot dealers offering order and delivery and some that said they have never heard of having cars delivered under Motability The one I have found does is subject as you have to tell motability to this Law they have as it will cause the dealer to get in trouble. It is very stressful and caused my health to go down hill to every time you go for your new car to explain this as it should be free to disabled who are unable to visit and collect there car, everything that is done at a dealership can be done on the salesman laptop he brings and the looking over the car and even an adoption’s installer like mine can demonstrate them to you at your home. In Fact it is better at your home for some of us it is more relaxing and gives you more time to look over the car with space around it as I have and never had any problems and even the salesman have gone over and over things if you are unsure. It used to have on find a dealer on Motability website home visits but strangely they disappeared a few years ago I do have one theory as one dealer told me they used to pick up and deliver your car if you had problems or a service and he told me Motability no longer pays them for this service and it would cost you more than £40 so is this another cut without telling us.