I just heard about this today. This is a multi-stage international rally, with the option to compete in the "Adventure Class", which means you follow the main race in your own vehicle (and will be supplied by a GPS map) - this according to the race route director - but I have not confirmed the details. Late entries close 31 August.
You never know, should be GREAT fun, if you've got the time and entry fee...

Christoph
http://kalaharirally.com/