I was musing on this today while driving in the rain... We already know the basics: 4.4s 0-60 (apparently with a higher power drive inverter), some nice interior accents, some CF on the outside and dark wheels. What else? How much "performance" is this car ready for? The site mentions sport-tuned traction-control. What's that mean? Do we get another setting for the air suspension for sport? The Roadster had braking issues, do we get bigger brakes? Rotors that cool quicker? Are there extra steps taken to keep the motor and related bits cooler? We heard steering can be tuned, do we get additional options there? There's concerns about regenerative braking, can we disable or more finely-tweak that in the performance model? Anyone know any answers to the above? Anything else you can think of that might need to be beefed up for a true performance version of the Model S?