I play with very minimal HUD for immersion, I prefer asking my engineer for race updates instead of glancing to the left and seeing the gaps or positioning. When asking about the driver behind in previous years the engineer would let you know the gap behind, it seems this year he says everything EXCEPT that one piece of info.
Also let us change weather in driver career/play as our character in grand prix mode please :) It's weird having to drive in heavy rain in China when we didn't have that during this season.