My 370Z in the Snow - Blizzak LM-60
I drove my car in 2 light winters and it wasn't bad. Keep in mind that I only live 1 mile from work so I didn't exactly beat on it through the winter. I've since sold my winter rims and tires and bought a winter beater for 600 bucks that has 4 wheel drive. Winter tires will probably run you 1200 bucks. IMHO it's not worth driving the Z in the snow.