A complete real time tweaking of per wheel outputs based on live slip/velocity/momentum for perfect AWD.
In addition to the sls this idea is deployed to some extent in IC cars as well: electronic limited slip differentials can send continuously varying torque to each wheel, see the Porsche 918 spyder (combo electric and IC) or the Nissan GT-R which has a famously odd driving characteristic as a result of the computer controlled torque vectoring.
Formula Student Cars have had this for years, check out TU Delft Formula Student Electric vehicle.