I now have 6000+ miles on my not quite 5 month old 2021 Telluride SX and have just gotten back from a 7 week Michigan/Florida driving round trip. We took extra days on the way back and with a fully loaded car, did some side trips in the north Georgia mountains and then drove north through The Great Smoky Mountain National Park. I do better as a driver than a passenger, so unless I get tired, I drive and my husband is happy to be a passenger. I did all the driving on this trip. So how was my experience driving up to 12 hours a day and in vastly varying road conditions? (I drove through a small creek across a narrow winding mountain dirt road and on good ole I-75) It was effortless! Using the adaptive cruise control and the lane keeping assist where appropriate made such a difference! At all times I had a hand resting on the steering wheel and my eyes on the road, but what I found is that the muscle tension required for steering, braking and accelerating with these aids simply evaporated. My hands didn’t get cramped, my shoulders didn’t get achy with tension - it was SO relaxing to drive and therefore not tiring at all! I did sit on a memory foam chair pad on my seat, which added to the driving comfort level. During said narrow, winding, dirt mountain road (beware route recalculating), I of course was on my own to maneuver through the terrain (my husbands response to the success of the drive was that he didn’t have a heart attack!) I also loved the birds eye view cameras when backing up down said dirt road when the road forward was closed and the road too narrow to turn around on. All said, my Telluride was a pleasure to drive and got me to where I needed to go safely and in comfort!