signals and gestures
i mostly agree, or i would have to (i was not there), with your stories of the old days
i assume that it was fairly unusual, those days in the USA, to find another bmw on the street side by side, that probably makes the great difference compared with todays possibilities of buying any car in any part of the world
also some of the spirit of the road has dissapeared, "the road": that vast, dangerous, and unknown territory sutiable only for brave pioneers, in which help can only came from a motored neighbour (when he was available, and that, ....you would "count on thumbs" !)
today the road is not a dessert but a jungle, too many "others", yeah "too many"!
but one thing that i am finding these days, when i drive my e9 through crowded roads, full of unhappy cars being driven by unhappy people, is that flash lights and friendly horns, salute my smooth passing towards the pleasure of driving (and that is something that they feel they are not having and they wish the could...)
te gusta conducir ? ( do you like driving ?) ;-)