Hadn't been back to this thread for a long time. The 2013 had a fatal flaw in the motor. On the 6th day I finally heard it and took it to a mechanic who told me it was something internal. Took it back to the dealer on the 7th day and they said they would fix it thinking it was the serpentine belt idler. Told them it wasn't, but they insisted they would fix it. Three days later I got the call that it needed a new motor and they switched me over to a 2016 Sport that was optioned very similarly but in dark blue.
I have since traded that one for the '20 Rebel. Now have over 69k on it. Of the three Rams this one is definitely my favorite. Only problems so far are two broken valve springs fixed under warranty of course. I bought the 7 year unlimited mileage warranty that covers everything.