Same here,some cracking shots on this thread but mine all look sort of flat.lol It would be great if one of you guys on here could do a step by step YT vid on how to take decent photos.
These are my settings:
Avoid afternoon to evening
Avoid showing the low res. track textures by using a little bit of motion
Exposure/contrast/color/brightness can be varied between 40-70 (especially color).
Aperture can be set between 0-15 depending on how blurred you want background detail (useful for hiding low LoD trees)
Shutter speed between 10-70
Vignette upto 25 is fine
sepia if you want to balance out high color and exposure.
I am not good at panning shots (and the game finds it difficult to focus on the car sometimes).
If you are on PC, try using Nvidia filters or equivalent to make your game look better in general.
Same shot but with my Nvidia filters enabled. Sometimes stock looks better, but filters aren't necessary in photo mode at all. Mainly used to increase color saturation, increase contrast and exposure, as well as some sharpness for gameplay.