No MOT or tax between 2016 and 2019.
Equally, not taxed or MOT’d between 2020 and 2022 and in this time, zero miles.
That’s at least 5 years of it not moving. So I’ll be amazed if mechanically it doesn’t have some issues. I understand you want to keep cars low mileage, but in my book, no miles can be as bad as moon miles. They aren’t sculptures designed to not move at all.