A couple of suggestions, if I may.
1. Make sure you remove the emergency triangle from your tool box before handing the car over for delivery or else they (don't know exactly who) will remove it as it is not a US spec item.
2. Careful in the Czech Republic, particularly with a BMW. Last time I was there I was driving a 316ti, at or below the speed limit, and the cops still managed to give me the highest fine they could find in their little book for a supposed illegal turn. The good thing was that the fine was only $25, the lowest fine I ever paid!