So I test drove the ZR2 tonight. Pretty much fully loaded except for the bose sound system. It had the Convenience Package, Safety Package and Tech Package. Overall a very nice truck and the interior felt and looked nice. Its a little tight(we fit two car seats in there and its a squeeze) but otherwise felt good.
To put this in perspective, I am coming from a 2014 F150 Ecoboost Lariat with nearly every option. The ZR2 was as nice or nicer than my F150 inside. However, coming from an F150 that weighs 6400 lbs and is on 315/70R17 Territory MT's(same tire as the ZR2), I went into the test drive expecting the 2.7L TurboMax in the ZR2 to move that truck around with ease. 430 ft-lbs with 33's and only weighing 5000 lbs, it should have a huge advantage, but I walked away kind of underwhelmed. It just didnt feel like it had much grunt and tended to downshift and go for RPM's.
With my F150, it always feels like there is a good amount of reserve torque on tap. Just roll a little farther into the throttle and just let the torque wave push you along with no gear hunting. I didnt get that sense from the ZR2. It was almost like driving my GX460 with the NA V8
I am hoping maybe it was just because it only had 35 miles and maybe the PCM was still learning. Or maybe they have a "break in" tune on it to keep the torque lower for the first thousand miles or something.