Too lazy to do research so you make us do it? Just joking and

.....I have 98' 528i and I have Silvania SilverStars and some people who have driven my car have actually mistaken them for xenons. If I remember right they are like $15-$20....Not bad, unless your Dad wants xenons, which are awsome, but again they aren't too much better they the Silvania's. And xenons will put a big hole in your wallet....