With the way the R1T is driving and the people sitting in the bed of the Ram it looks like their filming/taking photos of the R1T rather than testing. Maybe it's for promotional material?
Seems to be like we're seeing drift mode in action, one of the "fun" modes RJ talked about in this video posted to Twitter where he said: "Developing traction control for some of our more fun driving modes, we’re working on Drift mode right now.”
That’s the 4x4 in the outer banks NC I think. It's one of my planned destinations! Always wanted to rent a house there but didn't have a 4x4 car to drive.