I have just over 3,200 miles on P85D and the suspension got a little too jittery at this point. Our P85+ that we drove for over 22,000 miles and traded for this car rode much better. I have had quite a few high performance cars over the years, so I don't mind firm ride but our P85D now rides much harsher than our lowered and beefed up 911TT with over 750HP. In our 911 I can make a phone call without sounding like I am sobbing every time I go over a minor imperfection on the road. Also, I have only driven this car on soft 19" snow tires. I have a set of 21" HREs with summer rubber that I am afraid to put on next week. I suspect it may result result in us exploring options. I don't want to sound negative because I love the car. Although it's definitely a stretch for Tesla to think that people will drive it daily in any climate and any conditions, which I think was their original intent. Anybody else with similar thoughts?