I guess I'm a tint snob, I'd love to do what FRITZHID mentioned and put in nichia 219c at 3000K and 80-90 CRI.
I hope you succeed, please keep us posted! Another really interesting LED (though I don't know what degree it's actually in production yet) is Seoul Semiconductor's
SunLike.
I think I'm dreaming finding a set of led auxiliary lights that have a good fog pattern.
That actually exists, bigtime, from
Myotek. Their MFL-47 and MFL-5272 are extremely high-performing fog lamps (very bright, very broad beam with good, sharp cutoff) and while I haven't scoped it, I suspect their MFL-100 is, too. They don't have an aftermarket distribution channel, but you can buy the MFL-47 (which looks, in real life, like
this) by ordering Chrysler part number 6822-8884-AC (first item shown
here). Nice bracket on them, but made for a particular vehicle, so you'd have to rig up some way of mounting them on your "some other vehicle".
The same availability path is likely workable on the MFL-100 and MFL-5272, but first you'd have to figure out what vehicles use them as factory equipment (Myotek would probably tell you if you ask them).
As with all LED vehicle lights, these are 6000K (because that's what the automaker stylists want) and standard LED color rendering of about 80 (because nobody's asking for anything else).