40 miles seems a lot of miles. I have bought many new vehicles over the years that's the most miles I have ever had for a new vehicle deleveried from the factory to dealership.
38 for mine. I thought it was a little high, but it was waiting on chips from April thru July 2021. So, no real idea of distance to move off site and back and if it got rotated during those months. But, not worried and very happy with the truck. Fortunately, no issues for almost a year and 9000 miles. We're kinda country. If I had the dealer do the bed liner, it would have been 200+.