The RX is our first Lexus, and Toyota product generally, so I have no previous experience with rattles in these cars. Maybe we are just lucky, if most of theToyota/Lexus models do in fact have rattle problems, as our RX so far is about the quietest car we've ever owned. Hopefully this will continue and we can be rattle-free for many more miles to come. I agree that the quieter the chassis and the less tire and wind noise you have, the more noticeable and irksome even the smallest rattle can become.