I was going to stay out of this....but I can't help myself.
Shapeshifter has it pretty much right.
My routine on F1 A/S tires......turn off the TCS if you're in deep snow (ie. subdivisions), then turn it back on on the main roads. Take your time and learn to drive the car in the white stuff.....you may be surprised.
I've driven mine in deep enough snow that the belly pan left an imprint in the snow as I went over it.....it's pretty funny to look behind you and see a perfect impression of the bottom of your car.
As far as the wing.......it serves no purpose to put it up in winter driving. The wing is only meant to break up the airflow over the back of the car in a low-pressure zone. Think of it this way......Crossfire with the wing down = airplane wing.....Crossfire with the wing up = airplane wing with the airbrakes deployed. More about this topic can be found here.....
https://www.crossfireforum.org/forum...hlight=laminar