I'll use a touchless car wash if (1) it's winter; or (2) it's summer and my car has lots of sand and/or grit on it that I want to clear off before I handwash. (Neither has happened yet w/ my 135.)
I agree with the previous posters' comments that even touchless washes are not ideal. Sometimes, though, I think they are better than the alternatives: not removing salt in winter, or using a mitt when there's lots of grit on the car.
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