With the tire 15 cm wide, the contact patch is 6 cm long. Now load the car with 50% more weight (500 kg). The additional contact area needed is 55 cm^2 per tire. If you assume that the side walls don't deform, the contact length increases to 9 cm.
Mount Washington, Bullitt County, Kentucky: Browse Thousands of Acres of Land for Sale in Mount Washington, Bullitt County, Kentucky.
According to the U.S. Census Bureau, the county has a total area of 1,806 square miles (4,680 km 2), of which 1,670 square miles (4,300 km 2) is land and 137 square miles (350 km 2) (7.6%) is water. The highest natural point in Washington, Mount Rainier at 14,410 feet (4,392 m), is located in Pierce County.