I think that one of the features that spoils the gameplay and immersion is the hud.
Have you ever tried removing it? The cockpit view is fantastic. If only it was possible to see the car's dashboard in all conditions, I would play many races without the hud.
However, it would be nice to have more option:
for example: what about the possibility of removing/adding the names/cars of the opponents list, as well as other parts of the HUD? It is an easy update, it would take polyphony 1 day to add this feature.
What do you think?
If you have doubts: take your favourite car, take it to Nurburgring or to another track with day/night cycle and rain and remove the hud. I think that it is a fantastic experience. Without the hud you can see more and appreciate the little details such as reflections on parts of the cockpit, raindrops reflecting the colour of the lights surrounding the circuits at night and so on.