Who has the most miles on their car? Over 320,000?

Joe saw a guy with a car that had a sign that said "over 320,000 on it. He and Tina talked about mileage on their cars and what they add, what the average is. Then, Marty called to talk about his car, and Kelly too! She was driving it with over 320,000 miles! Comments on social media had people bragging too. See the original car Joe was talking about and the posts here. Joe and Tina air live from 5A-10A Central on Star 105.5 in the burbs of Chicago and on star105.com!