Offer adjustable front/rear torque bias for AWD.
When bias is >90% rear, then traction control can be turned down/off. With this, Tesla could allow stability control to be tweaked to greater degrees of yaw allowing the car to be more effectively used on the track and way more fun! I mean, who wouldn’t want to power slide a P100D through the corners at Leguna Seca?
At least a Sport Mode that will use torque vectoring to get these big sedans to turn in quicker. A few other AWD vehicles offer this feature such as Subaru and Mercedes.