Renting a car at the Santorini airport thru Aegean airlines. Do they require an international driving permit?
Just get one at AAA, a little over $20. It isn’t the car or airline rental agencies who care, it will be the police if you get into any problems, accidents,etc
We rented an ATV (4 wheeler) on Santorini and covered just about the whole island. Anything goes there.
Officially Greece no longer requires one. But who knows whether someone will ask for it or not.