The argument that rain cannot be "properly" modelled yet is bullcrap, because cars can't be modelled "properly" either in dry conditions.
We are playing games, so neither the dry or wet will ever be "real" enough, therefore having all kinds of weather "simulated" would vastly increase a simulation game in terms of racing conditions.
But because a video speaks more than a thousand words, watch this (second race, start at 1:05:00):
We are playing games, so neither the dry or wet will ever be "real" enough, therefore having all kinds of weather "simulated" would vastly increase a simulation game in terms of racing conditions.
But because a video speaks more than a thousand words, watch this (second race, start at 1:05:00):