I enjoy looking at youtube videos of people starting cars that haven't been started in many years. Classic car enthusiasts would often have such cars laid up outside at their property.
Is it worthwhile to start and move them a bit (that's if they start and drive!) every few months or so vs leaving them sit idle. What problems would this avert?
From the videos I've watched, fuel pumps seem to cause problems after an extended period of non use.
Is a timing belt less likely to snap on a car that is started every few months vs one that is started every few years.
With some of my own cars I've noticed small things e.g. an analogue clock that doesn't work until the car has been running for a while and is nice and warm - moisture in the electrics?
Leaving the handbrake off and smearing grease on brake disks makes life a lot easier - yes the pads will now be contaminated and probably need changing before the car goes back on the road but it will be much easier to move the car while it is laid up.
Also, is it considerably better to store a car on tarmac/concrete vs grass/dirt or is that a myth.