Driving in Greece as an American in 2026 is not "hard" in terms of mechanics, but it is "challenging" in terms of culture and geography. The Greeks drive on the right side of the road, just like in the U.S., and modern highways like the Attiki Odos are world-class. However, you must have an International Driving Permit (IDP) alongside your U.S. license; while some rental agencies are lax, if you are stopped by police without one, you can face a €1,000 fine. The "challenges" include extremely narrow and steep mountain roads in the islands (like Crete or Naxos), aggressive "scooter" traffic in cities like Athens, and the Greek habit of using the hard shoulder as a "passing lane." Many cars in Greece are manual transmission; if you can't drive a stick-shift, you must book an automatic well in advance for a higher price. In 2026, GPS apps like Google Maps are accurate, but "Street Signs" in rural areas are often only in Greek script. If you stay alert, avoid driving in central Athens, and take your time on the coastal curves, you will find that a car is the absolute best way to see the "authentic" Greece that the tour buses can't reach.