Hello pecto3,
My car actually is Biarritz white. It's a 2000. Yea, I know what you mean by not getting that brilliant shine like on other colors after waxing/polishing. I actually put on a coat of Meguiars NXT yesterday and was impressed with the results. It is so easy to use. I wish I would have snapped some pictures while it was still pristine.
Here is an old picture.
ddb