My Mazda3 Sport GT isn't the best of winter cars. Not quite in the same league as those other cars, I know, but it doesn't have the same balance as any of my VWs (Jettas, Passats) that I've owned. Wonder what the big difference is...I mean I've got a really good set of winter tires on it but I dunno.....
What winter tires do you have? My Mazda 5 GT isn't that great either but I think I more blame the tires, Toyo Observe G-02+, it doesn't have the raw gripping power, although I also noticed 1. too much torque, 2. not enough weight on the front wheels, which is apparent especially when I'm facing uphill and of a sudden most of the weight shifts to the back wheels. I wish I got Yokohama iG20s instead, those tires were sticky. Or maybe Bridgestone Blizzak WS-60s. My theory is the stickier the tires, the worse they wear, but the better winter traction they have.