Check out your gaining base's website, it'll have the requirements for the paperwork and any modifications you might need to get done prior to licensing. There are some small fees I found for Spangdahlem but they were all under $50. The only mods I found were to the signals, aka directionals, and the driver side rear brake light. The signals need to be visible for 180 degrees and the brake light has an additional bulb that is used during foggy weather in place of those idiots who drive around with their hazards on in fog. I saw a TE over there on my last visit, mine is staying here. The gas is no problem, on base gas is the same as the states, off base is uber pricey. Parking garages and parking in general are going to be a pain. I would NOT bring a roof rack, the garages are very compact. Good luck and enjoy, where are you headed?