The other day I had a chance to take the Passport up a pretty steep and curvy mountain road. I took the opportunity to test the torque vectoring rear dif and the V6. I didn't do anything too crazy, but did 3/4 (or so) throttle accelerations out of a series of turns, up this steep road. I was pushing it for sure, but nothing too extreme. The drive up this mountain took probably 3-5 minutes, and at the top I pulled into a parking lot. While sitting in the parking lot, I noticed a strong mechanical smell, very noticeable, and very similar to the burnt clutch smell you get from a manual transmission when you abuse the clutch. Engine temp was fine. Has anyone else noticed this when pushing it a bit on hills? I wonder if it was the ZF9 transmission, or if was the ivtm-4 rear clutch packs on the rear wheels causing the smell. I didn't get out to check if it was coming from the front or rear of the vehicle. The smell left quickly after a minute or so of light cruising. That being said, the PP performed admirably for a vehicle of its size, and was pretty fun to take on a road like that.