i have had no issues getting through the last 4 winters in my G35 (not AWD) with snow tires. I've never had more fun, either. that said, winters would be a lot more fun with an S4/RS4, GTR, or STI, all with snow tires. You don't get anymore traction (and definitely not anymore grip) on corner entry or mid corner, but you get a HELL of a lot more on corner exit and off the line. This means, no more gently coaxing the throttle on a start on a snowy/icy road, no more modulating throttle through a corner, etc etc etc. just stomp on it and go. my girlfriend has a impreza 2.5RS, and as anemic as that car is any other time, it is a BLAST to drive in the snow with even regular old all seasons.