aircraft tend to sit much longer than owners intend and are a good indicator of what will happen. They get condensation in the crankcase which causes all kinds of problems. to that end owners will add cylinder heaters or crankcase heaters and battery trickle chargers.
I’ve left cars sit for months at a time and brakes will seize in a bad way. Batteries eventually discharge and freeze to failure. Older tires will age faster. It’s best to run the car until it’s brought up to temperature and run it so the tires and brakes are exercised. I’ve never had a belt fail that was replaced on a normal schedule and the same for alternators. I usually get 200,000 miles out of an alternator and 4-5 years out of a battery if they’re maintained.