When I bought my 2016 Model X 75D used with 16k miles on it, the first thing I noticed was the stiff ride. The best way I can describe it is like driving a bobcat or a gocart. I feel like I bounce over every little bump in the road, like a bobcat. I tried to get use to it and for a while I mostly did, though it still annoyed me. But I have been driving a Model S for a couple weeks and jumped back into my X. The difference is startling. The S is SOOO smooth and nice. I want to keep my X but if this suspension behavior is normal I think I'm out. So I'm wondering if this is normal or have others experienced this same thing. I took it to the Service Center and they looked at it. They compared it by driving another X and then driving mine then said it was similar. That was a few months ago. I also swear occasionally it is not as rough, which is likely when they drove it. And now after driving the S then jumping back in the X it's killing me. So much more stiff and harsh in the X. Is it just me?