Because of their being outstandingly non-standard. Thunderstorm is really impressive. Funny that the outer camera does not require wipers and makes it much easier to understand what is going on. Moreover this camera makes it possible to look at the spray from under the tires and water dust from your car, too. Rally or trip Competitive aspect of the game looks a little bit not natural.
Roads are too narrow for that.
Passing somebody, if the passed does not welcome it, seems risky. The point is to preserve the cabin one wise driver used to say and then went bald-headed. But in case you have a full cargo with windowpane, it is not that interesting to take a risk. You only can slow down and wait for a proper moment to pass. The game trains accuracy, wise driving manner, and other anti -overturning qualities, but unexpectedly the AI is aggressive.