I try to get my 77 el Camino washed once a week. I usually get the better car washes that get the underside too. The car was restored in the ‘90’s so not new but looks new and has good gloss. No rust showing. I don’t do car shows any more so I don’t donthe detains as nice as I used to do. I still clean it up but without a garage or shop any more it’s much harder. I average about 15k a year on it and don’t drive it at all in the winter. The Rally steel wheels are showing a bit of wear but a spray can will fix that.
When it comes time to get new tires I can sell the used tires and wheels for about what new wheels from Summit cost. They sell wheel and tires balanced for less than I can get at Discount tire.