If you have all of the HUD turned off while driving, you don't get notifications when you change things like traction control or abs. This was present in Project Cars 2 as well. While I understand it from an immersion standpoint, it would be great if it could be toggled on or off with the other HUD elements. I really prefer to have the HUD off but these notifications are still necessary in the heat of a race.
The HUD needs a lot of work and ideally should have the ability to resize & move widgets whilst having the functionality to save and scroll various profiles..
In PC2 you can turn on or off everything individually, as well as change between full and smaller versions etc. That was handy if you want some items but not others. You can adjust the size of them etc in this too, just needs to be done in the XML file.
lets assume, Reiza wants to do a more enhanced HUD than known from SMS. Its not ready as we speek and so we currently get only a basic version of the original thingy. be patient