
And whether or not it's fwd, rwd or 4wd is not really relevant to the whole 4ws issue.
When 4ws is working well as it should then it really is a great benefit to everyday drivability and stability. It's when the systems get old and sloppy that the issues start to arise and most owners can't be bothered to fix them properly.
On the limit, say on track for example, things can become a little interesting. 4ws systems can take away from the drivers need to know exactly what is going on with grip levels and in some circumstances 4ws sytems can become "confused" with high speed direction changes through chicanes for example.