I just commite on sdl-port first version of ssgasky in Torcs-NG.
Take E-track-6, ruudskogen or wheel-2 for test.
Put Fov Factor in Graphic to 3000
Further work is required:
Menu for enable/diasble dynamic sky/rain
Friction on the rain
the rain appear (based on the code Simgear/precipitation)
Test and tell me.