Comparison for you
1) F1s - less than half an inch of snow = spin city
2) Pirelli Scorpion Ice and Snow with 19 inch wheels from tire rack...
Snow up
past the front airdam and the car went right through it. The difference is so great it's hard to comprehend...
Also I am only running three snow tires right now (Tire rack sent me a defective wheel and is sending another to me now)
Cheers,
Chris