If you are thinking of storing then think carefully, in my experience it does a car no good. IMHO If left sitting for a long time, tyres flat spot, bushes can oval, and rubber harden, sliding parts can start to corrode and slightly seize ( bad on Mog front suspension), all meaning premature wear with little use and additional service costs. I know this from experience with a low mileage Morgan which needed full suspension rebuild after just 22k miles spread over 16 years, ridiculous! Also brakes had issues as well.
If your storing car put up on axle stands to relieve weight fron suspension and so on although there are still issues with this, make sure everything is well oiled and greased up. A Trad. Morgan chassis is quite flexible and can caused squeaking as it flexes, I think rubbing of wings against seals, so lubricate with ACF50, a great corrosion inhibitor used in Aircraft industry on aluminium etc.. If I lay up my car this is what I do but if there is a dry day then off the stands for a lovely 20-30 mile blast to get everything moving. I like to do this at least twice a month.
Cars are pretty well under sealed so a drive in the wet is the unlikely to hurt it, if road salting done then wash off underneath and leave to dry off in the wind before putting in garage.
I have come the view like several others here it is better to use it and enjoy rather than let it sit and rot and seize up in a garage.
