[Pavel]

So I got two new winter tires that I put on rear wheels (front were still good for one season). I got Pirelli Sottozero 3 xl 225x45x18. My front tires are 225x40x18. After I put those tires on, the car just drives horribly. Whenever I accelerate or decelerate, car pulls to either side. When driving on a highway at 75, I constantly have to steer left or right, as car wouldn't just go straight, it slowly pulls to either side. And traction control kicks in at even slow speeds around bends. In simple terms, the car just feels wobbly. My last winter tire was Sottozero 2 that I was pretty happy with. But the new model is just undrivable. Is it because it is a taller tire (45 vs. 40) or because they are just really bad tires? Any ideas?