Seems Audi was the first to have them and now MB on certain models. If you're unsure of what I'm talking about it's the row of small lights underneath the main headlights on the new Audis.
http://www.carpages.co.uk/audi/audi-a4-safety-09-02-08.asp
http://www.carpages.co.uk/audi/audi-a4-safety-09-02-08.asp