There is a new car wash that just opened up by my house. It is a "touchless" car wash so no brushed are used only high pressured water to clean the car. I ran my mothers van through it yesterday and it seemed to work pretty good. Do you guys think it's ok to use on my bimmer????? She's filthy and it is too cold to wash her outside not to mention that my hose is frozen! What do you guys think? Thnx in advance for the responses!!