Took pictures of the worst rusty area of the car today. Now I don't think I can fix it.



No idea why that little hole is there or whose bright idea it was to drill it. I saw a Buick Century in Michigan and another white LeSabre across the street from my grandparents' house with rust in the exact same spot...caused presumably from brine kicked up by the tires funneling through the hole into the cavity and then oozing from under the lid onto the fender.
So it appears that i would indeed have to completely replace the fender, and if so, block that handicapped hole so salt, dirt, and water don't get kicked into the gas cavity.