I've driven more than ten Lexus of different model except the LS, they all have rattles, some very little or intermittent. Therefore I believe those who said their Lexus is rattle free is either they are lying, don't want to accept the truth, don't pay attention to rattle or don't listen hard enough for noise within their Lexus. To conclude, Lexus is best at almost everything including reliability, satefy, security, style, luxurious, ergonomics, services, value for money etc. But you must accept rattle if you want a Lexus.