Guys, I'll be on vacation from this weekend on for 2 weeks, and I'll go to Germany for the first time, know the country a little and visit some friends in the Frankfurt area. For n reasons, we'll probably go by car, albeit a subcompact thing. So, my question is: can you Germans and others used to the autobahns give me some basic 'do or do not do' advice? I'm quite comfortable driving in French roads already, so I guess I already have a glimpse of what 'civilized' driving is. However, even if I know I can't (and shoudn't try to) break any speed records, I'm really unaware of what makes a section unlimited, for example or what would be the advisable lane in my little slow econobox, shall the road offer more than 2 of them (yes I know, the left one is for really fast cars or overtakings only).