Hi , just a quick bit of info about letting a buyer test  drive your car .

even though we all know about letting someone drive it alone is a BIG NO NO ,you should also be aware that even though a person who
is taking it for a test drive even  WITH FULLY COMP insurance has a crash their insurance only covers the other drivers car , and if someone crashs in to your car your insurance and the buyers insurance will not cover you for the damage.. i learnt this the hard way to the sum of £9k stiil going thru the courts for the money

so be carefull