A European road trip is a traveler’s rite of passage. Not only does it allow you to explore villages, mountains, lakes, and ancient ruins you might not get a chance to see when taking public transportation, but it also challenges you a bit. You may have to drive on the other side of the road, figure out how to pump gas in another country, or navigate the route via signs that aren’t in your first language.
No matter where you choose to go for your road trip, there are a few things to keep in mind, starting with when to go. “The best months are almost always April through June or September through early November, when
Source: 10 Best European Road Trips Every Traveler Should Take Once

