[jameshart]

1) that's not something most AWD car owners worry about - it's a form of maintenance diligence like tire rotations and checking their oil every fuel stop that few drivers bother with, without serious consequence.

2) That clearly only applies when all the wheeels are connected through limited slip differentials. When the front and rear axles are run by independent electric motors with electronic power/brake distribution and regenerative braking feedback systems? you may need to revisit your mechanical assumptions.