Saw a video on yorkbbs showing 2 nerdy guys wiping down a Porsche Macan. Guy uses one towel to wipe down the bumpers then go straight to the hood without cleaning or switching towels. My chinese friend who read the long post says the owner denies any possibility it was scratched during wash and warned me to stay away.

Stay AWAY! Friend showed me a viral video posted at yorkbbs showing how they destroyed a porsche, friend was telling me to stay away since he knew I occasionally go there - too lazy sometimes to wash my beamer, especially with the baby. Won't be going again after seeing the video. They use 1 towel to wash the whole body from bumper to hood, guy's porsche was schracted across the hood and fenders on side.