Was rushing down the freeway the other day and was certainly at and above 79mph. I did not hear the noise you mentioned. Sorry.
Best of luck getting your RL fixed. But as you know, even a Lexus can have problems. Think of it this way.....in every day life would you accept a .1% defect rate? That's just one-tenth of one percent. So for every 1,000 M&M's you eat, one will not be perfect. Now take into account that your RL has approximately 14,000 parts. With our error rate in mind that means you've got 14 things on your car that isn't perfect. I'm not aware of any automobile manufacturer that has reached perfection.
To answer my own inquiry, Acura will get the Japan/Euro version of the Accord as an intro sedan. Four cylinder car based on the US platform. However, the car is smaller than the new US Accord. FYI, should anyone care pics http://www.acurainspired.com/gallery/view_album.php?set_albumName=acuratsx Also the 2004 TL might get 280 horses under it's newly designed hood.