Audi S8 D2 Facelift Xenon light types

[H24k]

I own 2 S8 D2s Both facelifts, and for some reason my older 99 green S8 which has the earlier pre facelift badges has much nicer looking headlights than the newer 2000 model, both are xenons and while doing a search I can see that most D2 facelift S8s seem to have the older looking type which are on my silver 2000 S8, ive added some pics and would appreciate if anyone knows the differences. Thanks