I have 175' of 2" hose and have used it all once or twice. I also used a AirHog booster on these long runs. I assume your next question is going to be how long were the dry times.On your m5 how long of hose runs are you getting from the van?
To be honest, I do not know as I had a Studebaker AirPath fan that I left running on the carpet over night. It was all dry the next day but that was like 10 hours later.