Fergus Walsh, the BBC Medical Correspondent, said (and I quote verbatim): "You cannot just go out for a drive. All non-essential travel is off the cards at the moment."
Following that info up through Government guidelines I find that the rationale is that you might have an accident when someone has to come and rescue you from your crimped car and take you to hospital for treatment thereby putting themselves at risk and giving the hospital yet another job to do.
Yesterday I received a letter from the NHS telling me that I have been identified as someone at risk of severe illness if I catch u-no-wot and safest is to stay at home at all times for at least 12 weeks.
So, I have the same dilemma - how long can you keep a car immobile (maybe I should start by removing the battery) before it seizes up entirely. I don't know