Plasti dip? How about you plasti dip your undercarriage, drive it on salt for a winter or two and let the rest of us know what happens. I know one absolute sure-fire way to guarantee that road salt will not affect your car, and that is to never ever drive on it. It's working for me. Bottom line is it's your car. Experiment with all the plasti dips, sacrificial anodes and voodoo you want. If your car is damaged you can take the financial hit and go and find another D if things don't work out as you hope. Dan W. VIN 16192