I did this with my BMW ~5 years ago. There are no import tarrifs or environmental problems. The car I bought there is 100% to USA spec and when I'm done with it I can sell it back to the dealer down the street and it is just the same as a car bought on US soil.
There is a huge forum just dedicated to BMW European delivery if you are interested and it helped me out a lot when I was researching this back then. Also someone there every year I believe posts the internal pricing for BMW US/Euro wholesale and with dealer markup so I just went to my local US dealer told him I would give him $1k above German wholesale and he filled out all the paperwork for me. I flew to Munich a few months later showed them my passport and off I went. It was great.
There is a huge forum just dedicated to BMW European delivery if you are interested and it helped me out a lot when I was researching this back then. Also someone there every year I believe posts the internal pricing for BMW US/Euro wholesale and with dealer markup so I just went to my local US dealer told him I would give him $1k above German wholesale and he filled out all the paperwork for me. I flew to Munich a few months later showed them my passport and off I went. It was great.
Link here: http://www.bimmerfest.com/forums/forumdisplay.php?s=68aa7500...