I was one of the group wondering about the best way to wash my new Karma. I park underground in Boston, have no access to a garden hose or anything like that and have no faith in someone else's dirty cloths... I poked around some other cars forums and ended up buying Optimum No Rinse Wash and Shine and after using it today I have found my answer! I don't want to sound like a commercial but this stuff is pretty great. I bought the nicest micro fibre cloths I could find and my diamond dust paint was back to sparkling away. Just a heads up in case anyone else was still looking for something like this.