That you did not know that Car companies have been using oval tracks for decades to test their new car mileage, tire life, and other factors is just another in a long list of your ignorance.
You truly are stupid to all things life, until i explain them to you.
That's testing the car, NOT the roadway.
You are AGAIN completely failing to account for the difference between a specially prepared circular track and the tens thousands of miles of roadway on just the freeway system alone.