Adding on to kenny's thread, but he's trying to get some serious answers so don't want to hi-jack it! I've also been thinking about changing the number plate lights to something a bit whiter, but don't particularly like the idea of having to code out bulb warnings etc (until i can afford LED rears that is!) anyway, i've just ordered a pair of Osram cool blue w5w halogen bulbs to replace my sidelights as they currently look very yellow compared to the new Nightbreaker H7's.
Do you think they'd make much difference to the plate lights?
I may also get some for the interior lights if it's worth it, i'm just not a big fan of the white LED look in the headlights.
Any opinions welcome cheers