Another issue, but related to operating a car, is insurance. Rental companies are happy to sell you CDW coverage, for a sizeable additional fee. Then again, our VISA card provides us coverage, as long as we use it to pay for the rental, but for a maximum of only a month.
I’m not certain what a lease would require/involve, and could you find an automotive insurer that could provide adequate coverage for the timeframe you’re considering, and for where?
Then again, manufacturers like BMW have a European Delivery program, where you buy a new car, set to specifications for your home country, go to the factory for an introduction to your new ride and receipt of your keys, then tour around Europe in it until it’s time to go home, and your vehicle is shipped home, too. I think SAAB did that at one time, but that’s no longer an option. Maybe Volvo has something similar? Perhaps some Italian brands? British? I believe you’d start at a dealer near your home, but it would require some more investigation.