It's a huge hassle. I looked into a little bit when I lived in Italy. First things first, you have to get the car to U.S. specs, emissions, tires, even the type of glass used in the windows is different. Then once you've spent the money on getting the car to U.S. sepcs you have to transfer the title from what ever country you're getting the car from to a U.S. title which is another huge hassle. So in my opinion, the car better be something very special to make it worth the investment.
