It's old and boring driving on a route with the same steady weather. If it's not possible to use real weather data like FSX, at least give an option for ("Sunny, Chances of rain", or "Cloudy with Scattered Showers" or "Severe Thunderstorm/ Snowstorm Watch Late in the Evening", etc). So that, after driving for 2 hours and reaching into another town, the Blizzard finally arrives.... Or driving through heavy rain, the sky clears up and becomes sunny again.