My brother used to work with a friend of his to put Priuses that had been wrecked and bought at auction back together and then ship them overseas for a customer of theirs. They would take parts from other Priuses to make one, fully functional Prius. This sounds like one of those (but a Yukon). Possibly wrecked, put back together with a cluster/computer with the wrong miles, and trying to sell it. I'm not certain on this as I didn't do a carfax, but I wouldn't bother either. With how messed up their listing is, I would just try somewhere else. If you are interested in this one still I would at least make them run a Carfax for you, plus find out if the miles are correct on the Odometer. (Would be funny if that's just the mileage on the Trip A or B)