I recently upgraded my 2009 RX350 for a 2012 model and I'm really wondering if I have made a mistake. I'm very pleased with all aspects of the 2012 except one...ride quality. My 2009 rode much more smoothly than the 2012 does. I have the 19" wheels with Michelin Latitude Tour HP tires (P235/55/19). I'm wondering if I went to the Michelin MXV4's would the ride be smoother. I even asked the dealer if he would swap me the 18" wheels for my 19's...no go. I did take the car for a test drive and it seemed smooth enough to me but after driving it on all types of surfaces, the ride quality is not and upgrade whatsoever. I didn't purchase the car for pinpoint handling...I want a very smooth ride.
Consideration might be given to providing: 1) adjustable shocks or 2) have a switch which allows the driver to select between a softer or firmer ride.