D115 is supposed to be used as a waterless wash and it is great. Cleaning ability, smell, slickness and gloss left behind all superb. My favorite detailing product by far. I mostly do waterless now and only do rinseless if it rained or car is really dirty. It's a bit expensive but people have pushed the dilution ratio to 1:8 and 1:10 and it still works well. I use 1:8.
Never tried D114 or the Wolfgang but they can be used as both waterless and rinseless. D114 is known for its sole cleaning abilities, nothing left behind just squeaky clean surface. Wolfgang has some gloss and slickness agents left behind and has a economical dilution ratio but I think D114 has it beat at 1:128 for waterless and 1:256 for rinseless and it's cheap at around $33/gallon.