I agree with Sol that there is a rdiculous amount of torque control, but GM did do a good job considering they are trying to protect expensive parts, keep a luxury car sporty, and make Traction Control and Stabiltrack work well in a variety of road conditions. I drove several times between Northeast PA and Cincinnati this winter through some really bad weather and considering the OEM street tires, I thought the car did extremely well. Passed alot of cars and trucks sideways and off the road down embankments.
You really need to pull a WSS sensor to rid yourself of torque managenet, But even just simply turning off T/C on the dash greatly improves aggresive shifting and actually allows you to leave rubber behind, if you care to.
Try it and see.