Sad to hear that, many, many years ago when I was self employed I had a very large tax bill to pay one January and my only path was to sell one of my cars to instantly sort out the tax bill.
It happens in life, what was amazing that I sold my beloved Isuzu Vehicle-Cross to a very nice guy who looked after it very well and as fate would have it I bought it back after about 8 years.
So as I said to my girlfriend/wife at the time, small sacrifice now for better things in the future