I was posted to Heidelberg in the late 90s. Bought a used BMW 5 series and enjoyed driving there. Germans were wary of the USAEUR plates, as it almost always meant an American who was not as disciplined in driving as the natives were. Got lots of glares. When I drove a rental and dressed the part, all was cool. Great highway system and I LOVE how in some areas, big trucks are forced to stay in the right lane......