[racer_d]

1) I would recommend the "penny" or "quarter" test. Put one into the tread blocks. The penny head, if visible, means you have more than 2/32" tread. The Quarter, about 4/32" of tread. New tires start out with at least 8/32" of tread.

2) I would do what we used to do when i was growing up - drive you car to the level conditions allow. If they only allow for 60mph, go 60.. If they only allow for 40 then go 40. Trying to drive "80" in ALL weather conditions is just plain stupid. Slipin and sliding IS the feedback you want to realize you are exceeding the presented levels of grip.

3) In my limited driving in southern climes, I have found roads ill equipped to handle large volumes of rain. Poor soil near the roads, winds, questionable road surfaces (drainage and crowning, truck ruts etc) all contribute to less than perfect roads.