Lap delta please displayed where it should be. Eg on a real Formula E car it is with "Last Lap" and "Best Lap" on the steering wheel LCD screen. On the rF2/397 version there is nothing. I shouldn't need to use an overlay to display lap delta.
Thanks for the suggestion @CRMS - will look into this, but please be aware, the wheel display of racing cars in real life can be configured in seemingly endless ways by the teams and drivers, with any number of different data outputs able to be shown depending on the preference and requirements of that driver / team. With that in mind, the task of replicating the real world is actually close to impossible as not true 'standard' exists - think in GT racing, often displays are tweaked for multiple drivers who use the same car!
I realise that there are different displays for individual drivers. But the current Formula E screen is so closely based on a real FE screen, as I posted here, that it would be good starting point for the game car. https://forum.studio-397.com/index.php?threads/updated-hud.69863/#post-1073641 Pics at posts 4 and 5. Anymore than that, then mods and overlays etc.