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.
Mount Vernon is the county seat and largest city in Posey County, named for General Thomas Posey, Governor of the Indiana Territory, who had the distinction of growing up next door to George Washington at the original Mount Vernon, and who was widely rumoured to be Washington's illegitimate son.