Bmw will give you the discount motability get off the actual value of the car and that will be the percentage of discount you get off extras, had the bmw 120iM for a month back in 2018 which I was going through the hassle of pip assessment and even with strong evidence from all 5 of my specialists stating that I needed my car to get around they said I didn’t and had to appeal, sadly at the time it scared me to taking the 2k one of payment to get me back on the road. But on that car I added a few extras and got the 25% discount motability got off the vehicle transfered to the extras.