My 2015 6 had around 56 k on it before this trip. I put on another 3500 miles. The car performed nicely. Average temperature from Massachusetts right on thru to South Florida was 90 plus. This car doesn’t have climate control and I did notice that sitting still in 95 100 weather in South Carolina, Georgia and Florida the AC was not blowing cold. Upon driving it got colder. But not ice cold. Any reason why? I did charge the AC before I left. Also any recommendations for tires with minimal road noise is welcome. This Mazda 6 exceeded my expectations on this 3500 mile run.