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. The change in volume from this additional flattening of the tire is quite small.
Mountain City is a town in Johnson County, Tennessee, United States. The population was 2,383 at the 2000 census and 2,531 at the 2010 census. Mountain City is the county seat of Johnson County. It is the northeasternmost county seat in Tennessee.
Knoxville, Tennessee. Knoxville is a city in the U.S. state of Tennessee, and the county seat of Knox County. The city had an estimated population of 186,239 in 2016 and a population of 178,874 as of the 2010 census, making it the state's third largest city after Memphis and Nashville.