Carfax shows an estimated 629k miles, which is actually pretty low. I saw this one a while back and you can see Carfax shows over 1 million miles! https://platesmania.com/us/nomer21294625
Also where do you get your Carfax mileage info? Access to a dealer account maybe? I’m pretty sure (and hope) you wouldn’t just be paying the $40 every time!