My buddy and I had one of our race days, after getting a break from the rain enough for the track to dry out enough to run on. But DANG did we get stuff thrown up into our chassis like never before! Plus about two pounds of mud stuck under the body! 😝 A hose and an air compressor will clean and dry the body, but the suspension arms were caked with mud, and the chassis had little mud balls all over the place. It was the first time I was concerned about the receiver, even it had mud on it. I've read that women's nylons make good chassis covers, keeping dirt out, but allowing air to cool the electronics.