you could just buy the 92-95 headlight covers and use a dremel tool to make them fit. LIKE THIS GUY DID...

THAT LOOKS WAY SWEET!

ok wel it doesn't want to post the pic, and cardomain won't let me upload at this moment, so here a link
http://99bonny.tripod.com/pics.html

Ordered a pair of the 92-95 covers last night. I'll let you know how it all went when I'm finished with them.

I tried it and i ruined 'em. It'* pretty hard, good luck though.

Any advice on how to best proceed?

Heat them up with a flame before you cut them..they crack easily. ..lol.

Yes you can make the old fit the new 96-99.Just a little cutting and little bending with a heat gun .There working for me. Look killer on my black 98SLE.

Since you have a 96+ car, don't you have day time headlights? I guess it'* not that big of a deal but it kinda ruins the whole " black " look , lol. I'd like to know how someone ( i forgot ) made a custom switch so he does't have daytimes.

I think boseman 350 was working on that .he'* the one that got old headlight covers to work on the newer ones first.When I saw his ,thats when I started mine.About the day time headlights.I think they cut into the ground wire for the lights and then used a toggle switch to reconnect the ground when you want your lights on.

Finally got my headlight covers. Whatever you do. Don't let the hood fall on your covers or you'll crack them right off! That has happend to me, but it wasn't to bad. I can cover it up. You won't know it till it'* pointed out to you. And take your time. As for the daytime lamps it'* not so bad. Seems to not be too noticable under the daytime conditions,(as with my Grand Prix). The covers of my GP are of a light tent ,so I can say this with some authority. I'll let you know how it turns out.