I noticed in the in game pop-up apps menu on the right hand side, an option for "light maker"...
Turns out you can actually add new light sources for those scenes which seem too dark.
I make it no secret that my images are processed (heavily edited), but this is really going to help catch details on dark cars in dark pictures.
Its a bit fiddly, but for anyone who really enjoys taking photos in AC, but feels they could do with more light in certain areas, it's worth learning.
Here are some unedited lights/no lights for comparison
And here is what you are presented with when you open the app
Still learning and playing around with different PP filters. Each track, time of day, weather gives a different result for each filter...higher math (for me)