Graham car cover is not just a sheet to “cover dust for peace of mind.” For classic Graham cars stored in the United States, a correct-mechanism car cover works like a biological skin, helping the car breathe in a static space and avoiding any contact damage for many weeks or even months. Many owners share the same experience: store the car for winter, open it in early spring and find a musty cabin, glass etched with mineral spotting, chrome freckled with tiny pitting, lacquer paint that has lost depth, even a faint straight mark running along the hood edge as if “imprinted” by a seam. These damages rarely strike through one big incident. They accumulate quietly from trapped moisture, repetitive micro friction, and mismatched cover geometry.