How to Drive Germany's Autobahn and Live to Tell About It

Parking is indicated throughout Europe with a white "P" in a blue square.

I've easily driven in five countries in Europe with no problems except one--a flat tire in France (You can read about that mini-disaster here.)--but I was nervous about Germany.  For the most part David and I would be sticking to two-lane roads, but what about the autobahn?  There's no speed limit on many autobahns (Some do post a limit).  Cars would be whizzing past us at a hundred miles an hour!