Im away from the gaming pc, but now that I think about it (if anyone cared) you can probably pull up the sol app in game and adjust the time of day (maybe even month) to get the shadows where you want them, for a good "photo mode" screen shot?!?
Sun now has a realistic position via the track's GPS position, time and date. So fantasy sun positions are not possible anymore. But as you said, it possible to change time and date to adjust its position.