It's not whitish-yellow, it' just white, like pure sunlight.
I also have yet to use the foglights. I've even driven through some fog, but the regular lights are perfect and illuminate the road very well anyways. I guess I'll probably have to wait for a snowstorm or something.
I saw a really nice Black Magic with bright yellow fogs. Really nice. I'm looking for more of a bright white, possibly blue. But what I was talking about is the type of bulb, I mean I can't just go into a shop and get some light bulbs. Don't they have different kinds for different cars?