Ok i have been in alot of heavy snow in my driving years and i use only one tire and nothing else they are the BRIDGESTONE BLIZZAK they are so impressive i live on a steep hill and drive a 2004 ford tauras witch is so bad in the snow its not even funny and can never make it up the hill so i just bought a set of BRIDGESTONE BLIZZAK WS-50 for the front and i can go the whole way to the top of tthe hill in 8" inches of snow as i did tonight and a 4WD nissan xterra could not make it to the top so i gave him a ride to the top =) i have 4 BRIDGESTONE BLIZZAK LM-22's on my svx P225/50/R16 and they are so awsome its crazy with the AWD so that is my tip to you all
but for better and what WRC rally cars use is the BRIDGESTONE BLIZZAK ws-50 is what they use in rally here is the link
for the world rally tire use on rally cars BLIZZAK these are the best winter tire made for ICE AND SNOW
http://www.tirerack.com/tires/tires....e1=yes&place=9
for a sporty feel get these BLIZZAK's
http://www.tirerack.com/tires/tires....e1=yes&place=0
here is a pic of the WS-50 on my Ford ...YES I PUT RALLY TIRES ON A FORD TARAUS I WANTED GOOD TRACTION