I'm sure I'll get some passionate responses here... But... I'll be using automatic car washes on my daily driver (M5) during the winter season. I'm not interested in washing my car in the cold. And my garage doesn't have a drain. So, I WILL be using the automatics until the temp gets nicer.
So, the question is... What's the preferred type of auto wash:
1. Brushes?
2. Brushless / touch-less?
Obviously...With the bushes...I'd be concerned with excessive swirls, scratches, Etc... But I know it can be corrected with paint and finish correcting in the Spring time.
But, With the touch-less, would the chemicals do more harm?
Thoughts?