Hello, As mentioned above; everyone I've ever known who did it loved it (they said) but I also cannot think of a single person who did it a second time except for one guy who was a friend of my Dad's who picked up several VW beetles through the '60's. He knocked off Europe a chunk at a time.
If you go that route:
A) Have a great time.
B) DO NOT forget to park the darn thing and go about on European mass transit. You have the option for 'essentially' door-to-door service with trains and street cars.
Don't grind your car away like a nervous American while in Europe. Yes, I said that.
C) In addition to the "usual countries"-France, Italy, Germany, Switzerland, Austria, Spain and the BeNeLux trio- don't overlook Scandinavia. Sweden, Norway and Denmark are beautiful and frequently get overlooked in my experience. Kira