Hi Volkswin, just done a search on bing and this come up…
If you are disabled, you may be able to claim VAT relief on certain goods and services for disabled people. However, the rules for VAT relief on cars are different. You can get a VAT exemption on a new car if you have a disability that qualifies you for the scheme. The car must be for your own personal or domestic use. You can also get an affinity discount if you are eligible for the scheme. However, you cannot claim both the affinity discount and the zero VAT at the same time 1,2-links provided….
1/ https://www.gov.uk/guidance/vat-relief-on-certain-goods-if-you-have-a-disability
2/ https://www.gov.uk/guidance/reliefs-from-vat-for-disabled-and-older-people-notice-7017