situman

With RX and pretty much all Lexus SUVs and cars, it tends to hit the suspension's bumpstops too quickly whenever there are expansion joints or big bumps. My old cars, a 2011 RX, my 2 ES350s, GS350, LS460 and my current car a GX460 exhibits this behavior. They just dont take expansion joints and big bumps all that well and often times, I feel a shock and shudder throughout the car. Some reviewers of the new Lexus models like the LS500 and LC500 are still exhibiting these kinds of behaviors.

An up and down sensation is just that, think of being on a small boat with water that isnt exactly calm.

It's hard to gauge how a car rides based on other people's opinions simply because everybody's view is different, plus they drive on different road condition and different configurations. Ride quality comes down to tire pressure, weight of the wheel and tire combo, crappy Bridgestones and generally the kinds of road that you drive on.