Sorry, i'm sure this is an easy question. How do you enable the delta bar and is there a way to customize the HUD in terms of location and what is displayed?
AFAIK the delta bar comes on automatically when DynHUD is enabled though that may have changed in a recent update. If DynHUD is enabled but not showing on-screen you might need to toggle it with the "5" key above the letters on the keyboard, (not the 5 on the 10-key pad). You can enable/disable DynHUD in the launch configuration tool and also in the in-game configuration settings under Display\Display. I think the delta bar only comes on after at least one proper lap though and in my experience it can sometimes be a bit finicky. You can customize DynHUD layout with the editor in the game's installation directory Automobilista\Plugins\DynHUD\editor\dynhud_editor.exe I don't think there is a way to customize the placement of items in the native HUD but you can toggle the different elements and scroll through the display on the bottom right to show different sets of data. I've forgotten the default keybindings since I've rebound those keys but those keybindings are located in the controls configuration.
Ahhh...duh! I was going off track in a couple of my tests and couldn't figure out why it didn't come up. Looks like even a small off-track will trigger it to go away. Thanks!