Like an exterior visor? I doubt there was ever a visor made that would fit that car. Visors pretty much died out in the mid 50's after one piece curved windshields came around. Plus, I don't think it would look right on a '58 If you're really determined, you're best off to buy an aftermarket one-size-fits-all visor, probably a used steel one off of eBay, and modifying it to fit. I've also seen some made using the front 12 inches of a 60's pickup truck hood too, but mostly for trucks. I like visors on 40's and early 50's cars, but I think '58 is too new for a visor.