I came across a very useful product for owners who store their cars. The product is called Flatstoppers. These race ramps eliminate the need to place a car on jack stands to prevent flat-spotting during storage of 30 days or more. Once tires are set on FlatStoppers (on a level surface), they settle into the ramps concave depression, which helps support more of the tire. This disperses the weight of the car more evenly onto the tire. They also will not conduct heat or cold into your tires despite changing floor temperatures. They come in three sizes to accomodate the widest tires: 10" wide (6lbs.)= $168 14" wide (10 lbs.)= $253 16" wide (14 lbs.)= $282 https://www.ebay.com/sch/i.html?_nkw=flatstoppers&ul_noapp=true https://raceramps.com/car-ramps/car-storage-ramps/flatstoppers/