I found in the How-to section of newimpala.com that someone had actually converted their headlights to use all four headlights. He had to install a switch and run some new wires, but it appeared it worked. And when I assessed my car as to how to do it, I suppose it does it. I was actually wondering how to do this, as I have seen some owners' mods include this functionality in the lights. So, I was real stoked about seeing a cheap and quick way of doing it. So, it is possible, you just need to do it yourself.