I felt that the stock lamps are OK, not Acura TL HID good of course, but passable. The reason I added driving lamps was to get more distance penetration( Yeah, I said it!) and also to fill the roadside areas to the passenger side with light, cuz' that's where the deer seem to spring out from.I have Hella FF's on my Mercury Sable wagon and those will be fitted into the bumper on my ST. I am going to fabricate brackets and cut the facia and make a housing that will replace the whatevers the factory gives us.It will look far more elegant than it sounds like now. Ok. We have shed enough light on lamps. O.P regarded winter tires. I am leaning toward Nokians with studs.