Here's something you won't see every day. It's a full artillery setup, towed by a two wheel drive R75 with sidecar. On the R75 is a little lever in a beautifully machined and letter metal gate. At one end, it says Gelande and at the other, it says Strasse. This bike is the great, great, great, great grandfather of your GS.
If you think about the Afrika Corps paint job and BMW's history of racing in the Sahara region, it's apparent that domination of the North African area has been a long standing obsession.