Just a thought I had while driving in acid rain.
Acid rain pools small spots of acid on pavement, could regular rainstorms do the same? It could potentially let players collect water from rainstorms, and could allow for a vehicle hitting water have a chance of drifting even at high driving levels or spinning out. depending on speed and driving skill.
It can be tricky to drive in heavy rain, and I would love it if you had to be a bit more careful driving during a storm just like reality.
Thoughts? Hatred? Love? Trifflids?