Running what one would call the 'old traditional' 4wd can
enhance a situation for a rollover on tarmac. Much of this is attributed to conventional differentials and one side of the vehicle unloading the inside of a radius.
This site is decent for understanding AWD
Audi all wheel drive explained | awd cars, 4x4 vehicles, 4wd trucks, 4motion, quattro, xDrive, SH-AWD, Haldex, Torsen, wiki - How it works
Remarkable how its all evolved. I don't know if much of the old school awd performance driving applies anymore. The new stuff is so idiot proof, you just mash it and steer.
A good book on the subject was AWD High Performance Driving by the meister Vic Elford (I think that was the title??).