There will be a few along later that will tell you that they have a lot more miles on one than that,with proper maintenance they will go way over 300000 miles.
If maintained properly the newer engines and drive trains are pretty much bullet proof.
Just look at
This Thread most of the ones that contributed to it,more than 100,have had no problems and they all started out with more than 100000 miles and have put a lot more on them as the years went by,I have yet to see any complaints about their service.
More than likely the unit you are talking about is a Former Rental and has been maintained.