Check out this yaris on ebay...

[YarisSedan]

So if you look at the headlights they have a led strip on the bottom of them. They look factory. Its not like the car is heavily moded everything else is factory so i dont think this was something added on by the owner.

http://cgi.ebay.com/ebaymotors/Toyota-Yaris-s-fully-loaded-_W0QQcmdZViewItemQQhashZitem3f01bad848QQitemZ27061 1961928QQptZUSQ5fCarsQ5fTrucks#ht_500wt_1182

[CTScott]

You forgot the link...

[YarisSedan]

Ooops sorry its really early in the morning for me and didnt sleep well last night. Posted the link up now.

[fnkngrv]

it actually looks like they used an adhesive SMD LED strip and attached it to the housing. I had actually tested that myself with some I have and didn't care for the results, but on this car it looks alright.