One thing that comes standard on all the new IS models whether its petrol/diesel/sport/se/sel - u guessed it..Rattles! You cant take that away, its company inbuilt. I clocked 10000 miles on my SEL and it had rattles from day one. I eventually traded in and got the Sport version (Apr 06). Its lot better though, but still rattles every morning - reminding me of Gill, Steve, Andy, Mike and the list goes on....
I do not think that Lexus has solved this problem, they promise every new customer that its rattle free. That said, I am happy with the car and have learnt to live with it.....Lesson 1 - Never buy a car (new model), even if its a Lexus!
For the records/survey - yes, my SEL had severe rattles. The Sport is much better with minor rattles.
Javeed
No rattles for me either.