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.
Map Bird's eye view of the city of Mount Vernon, Knox County, Ohio 1870. Perspective map not drawn to scale. LC Panoramic maps (2nd ed.), 701 Available also through the Library of Congress Web site as a raster image. Includes ill. and index to points of interest.