Are you talking about a new one? No real advantage there, pretty much same versions we get, but you can use their foreign delivery program to pick up your US-spec. car in Germany, drive it for a while there, then they ship it over.
Older ones bring up lots of issues with the EPA and safety regulations. You would need to find a shop to 'federalize' it, those used to be fairly common, no longer. Please be more specific about what you want.