Things got weird out back for RWD vehicles with the advent of brake-based "electronic limited slip differentials". Now the rear brakes have to potentially soak up gobs of energy to prevent a one tire fire vs. an otherwise open diff.

I remember helping a friend do brakes on some blown rwd v8 AMG he had (sl55 perhaps?) and the rear brakes were just as beastly as the front in every way because of this.

Since the Tesla's don't have a motor per rear wheel I wouldn't be surprised if they similarly rely on the brakes for limited slip.

https://en.wikipedia.org/wiki/Limited-slip_differential#Elec...