I posted earlier bits in the Focus RS thread. Helpful for understanding limitations and benefit inherent in each system.

It'll help answer power and turning "limitations" of the AWD systems.

http://youwheel.com/home/2017/05/07/...sive-analysis/

 

Reading through this article I kept wondering why???? - kept thinking the Focus RS would have been a better car had it been equipped with a center differential. I just don't believe that overdriven rear axles and constantly slipping clutches are anything but a maintenance nightmare - a solution seeking a problem.

 

I think systems like the Focus will be the norm in the future. It's fine, for the most part, except for the more hardcore bunch out there.

 

I'm not a truck guy but I watch Fast Lane Truck or Fast Lane Car where they take AWD vehicles and 4X4's into the Mountains to test their capabilities. Compared to a truck the only SUV I saw do well was a Mitsubishi and maybe a Subaru. A good AWD system should be as good as a 4x4 truck until ground clearance becomes an issue and for the most part they are not.