My opinion: Any TV can tow any TT, the question is how well?
My 2cents: I think it would be okay, on flat lands, but if you have a nice steep grade, like going up the Zilwaukee bridge going up north in Michigan, I'd want the reserve power and torque of a V8, which would guarantee me getting to the crest of the bridge while maintaining speed limit and towing 6k lbs.
My experience: My brother bought one and took me for a drive.. I was waiting for the turbo's to kick in and toss me back in my seat. I was disappointed.. My '06 Durago (5.7L Hemi V8 with K&N FIPK Intake) would throw you back in your seat.
My thoughts: Not worth the $30k for what you get. I think their commercials are correct, "Best in class towing." for a V6 that is.
My wish: I'd personally would go with a Diesel, better gas mileage, more power and torque, if you're going to spend the money that is... Otherwise find a 1 or 2 year old truck and save some cash. :-)
2009 RAM 1500, 5.7 HEMI + AirLift Air Springs
2013 Jayco White Hawk 28 DSBH
2007 Palomino Stampede 21RGS Hybrid (traded in 2013)