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I had a 1981 Ford 150 that I would park at the back driveway of my house after the Moose season in September until late May the following year. All I did was to add some fuel stabilizer in the gas tank while the engine was running, then remove the battery and bring it to the garage, and to connect a trickle charger/maintainer to it. Then in May I would reinstall the battery, prime the carburetor, and start the engine. The next steps was to replace oil and filter, check the engine air filter, lubricate the driveshafts U-Joints, and so on. Several of my neighbors do the same with some of their vehicles.
On the front garage I have a 2012 Corolla that's is in beautiful shape. I didn't drive it all winter, but started the engine each day with the remote, and let it run for 18 minutes. I removed the battery I January, and I haven't started the engine. The battery has been "maintained" in the garage, and within a couple of weeks I plan to reinstall the battery to start the engine. Then I will take care of its maintenance as I used to do with the F-150, exit that this one doesn't have a carburetor, nor driveshaft with U-Joints. Ethanol nor biodiesel fuels are used in Alaska, but I do add fuel stabilizer to the fuel when parking it for a long time.
About EV's: the manual should give you some ideas about parking your EV for long periods of time. It will take some time before EV drivers in very hot areas to figure what two do about parking.