I run a mobile unit here in S Texas and I approached a big dealer with a discounted detail package and a wash package and he told me "I
Sure you would give me an awesome car wash for $15 per car but we get rinse washes for $.90 a car!
Wth a dollar a car! WOW!
So heads up as I hear that's the norm
Car lots don't care about the cars. Spray with a pressure washer and dry. That's about it. Shame really. At $.90 a car you would have to do 20 cars an hour to make it even close to worthwhile. So you have 3 minutes per car.