Take a look at my site, up until 1993 that was the American light. The beam pattern is not great, and visibility is not that good either.
The Fog light lens cover is plastic.
The European headlights provide a superior beam pattern and reflector. They also look better, and make the car look more up to date.
The changeable lenses are also a huge plus.
In 1994 they changed it to a more european spec light, but it still does not have the same look as the Euro's and they do not work on older cars because the lens is different to accomodate the updated hood and grill design. So in order to really use those lights, you have to change the hood.
Updating to the European lights is for better visibility, beam pattern, light design, better reflector, and looks. The vacuum adjustment on some euro lights is a plus. And the city lights look really cool too. The improved light output because of the better reflector is what we all look for.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.