A better AO, or the ability to tune AO, would be great. Currently, for example, it looks like the car is not really on the ground. Reshade does the trick, but havig this natively would be really cool. Before : After :
The one you put is a bit excessive imo. But yeah, it would be cool. If i'm not wrong, this mod https://beamng.com/threads/al15-for-0-23-released-30-6-21-graphics-mod-al-part-2.71585/page-28 does that. The creator is updating it for 0.24 atm.
It is possible to tune SSAO in game (photomode) so it would be nice to have that also in graphics options/