We are in exactly the same position. 600 miles into new car Y Long Range (smaller wheels) ownership, having had 2x Model S and 1x Model X Raven Performance over the last 6 years, all of which were faultless and utterly brilliant, and owning and driving a very wide range of very cheap to very expensive cars, I couldn’t agree more. It’s the worst and roughest riding car i’ve ever owned or driven! (Imho, the suspension is over sprung and under damped). Unfortunately this is not the end of the story, the problem being made worse by the lack of regeneration control (removed in the latest models 3 and Y models in 2021 I think ) which on our mostly rural roads in Rutland Leicestershire make it incredibly difficult to drive it smoothly without it jerking backwards and forwards, even in chill mode which only takes the harsh acceleration away. I do like a good level of regen but it is far too violent. Many other users say that you get used to it, liking a one pedal experience, but all I can say is, those guys couldn’t have spent years behind the wheel of a Tesla car with customisable regen, dont live in Rutland, and there was absolutely nothing wrong with the user regen control in the previous cars- it was still a one pedal experience! I’m thinking it was only removed so Tesla could play top-trumps with maximum range compared to their competitors. The roads are so bad in our area that even the oversensitive and over geared steering can cause the car to lurch across the road over larger road undulations due to over sensitive steering input, regardless of settings. For context, and before I’m accused of little alternative brand experience, I’m in vehicle telematics and I have driven literally thousands of my customers varied vehicles over the last 15 years. I think I know what I’m talking about here. I developed a very good support relationship recently with Nottingham Tesla and they were fantastic In their approach and had the car in for three days to look at the suspension, check the parts numbers in case it was a bad batch and to resolve the very many cabin rattles and I was told the harsh ride is very common. I’m very pleased to say the rattles were almost all resolved and the Tesla Support team at Nottingham couldn’t have been more helpful. The suspension parts are correct and there is nothing more they can do. Having driven another Y car to compare the ride and having talked to them, I can confirm the harsh ride is in fact a characteristic of the Model Y. Recently the British motoring press have reported exactly the same criticism. My wife and I are absolutely gutted because we so much wanted to love the car and thought the size would fit ours families needs better, but we just can’t live with it because it is just too uncomfortable and tiring to drive. Yesterday I advertised our Y on Auto trader and I now just want to get my money back. I did consider spending nearly £4000 fitting a coil-over kit but it just doesn’t sit right with me. Not helped by the best kits being out of stock for months due to the popularity of this fix in America - do a Google search for “Tesla Model Y coil ver upgrades”. The model has not been tested and calibrated for UK Road types and for me it’s probably the biggest fail Tesla have had in the UK so far. I should add, Tesla lent me a two-year-old Model 3 performance (big wheels) for the three days while my car was having the rattles fixed and I’m pleased to say it was absolutely brilliant, slightly firm but commensurate to the sporty feel that is intended but it certainly does not crash bang and rattle all of the time over rural and unbroken road surfaces. The 2019Model 3 performance loan car did still have the regeneration control settings available because it was built before the software was changed and the feature removed and this feature still exists in older cars. The steering was also more natural in feel and weight, allowing for brisk progress over alarmingly bumpy roads without feeling tiring or requiring a surgical level of helmsmanship to get down the rough road quickly Unfortunately the Model 3 isn’t suitable for our families needs so that is not a viable option. Good luck with yours!