I found a 2016 Challenger Hellcat with 1,261 miles that I purchased from a dealer a couple weeks ago. A day after I brought it home, I was on a spirited drive and when I shut it off I had coolant leaking in the garage under the overflow bottle and running out the passenger side of the car. The dealer sent a flatbed, took it to the dealership, and diagnosed it as a bad radiator cap. The next day they said that had to "burp" (purge?) it several times to get all the air out of the system. Fast forward to today and, once again after a performance drive, I park the car and it starts to do the same thing. I started the car back up, checked the temp again, and then shut it off and it was fine. I don't understand what is happening and wondered if anyone else has experienced this with their cars. Once thing to note is that both times it was driven in Track mode but was not hot when I shut it off. Any thoughts?