Have you ever driven an AWD car in the snow? Believe me, it is a LOT more fun, and a lot more stable. I used to take my dad's Audi out to parking lots, man it's great. You can get the car completely sideways, turn the wheel and press the gas, and WHALA! The front wheels pull the car back to center. It really is great, and if you spend an extended amount of time in the snow, you'll really appreciate it. Plus, I think the WRX is faster than the RXS anyway, isn't it? 0-60 in 5.7 or somewhere around there. Get a WRX, get out there, and do your best Colin McRae impression

Of course, always do it with extreme caution.