My worst wet weather experience in my 240Z was driving back from an autocross, at night, in the rain, on a set of well worn Yoko A008RS2s.
The Z had a 30amp early 1970s alternator so I could run headlights or wipers (but not both), the car had an 8lb modified Tilton aluminum flywheel, a welded 3.54 rear, the front had 3/8" toe out, and I had left the Tokico Illuminas at 5 on the rear and 4 on the front.
About 15 minutes into the drive I gave up being scared and decided to enjoy the adventure. By the end of the 1.5 hour drive I could keep the car at a 15 to 30 degree angle to my direction of travel on the freeway for 2 or 3 minutes at a time. Just like driving on a dirt oval.