Hey Evan, thanks a lot! I just wanted to see the brake lights and nothing else. 
Aaaand… there’s the trouble - I see the brake lights on your P1 are orange, not red! They need to be blood red with a nice glow/halo around them - like FM5 and 6, and real life, really.
It’s settled then - an HDR screen would mean didley squat. The game’s lighting model is gimped and as I suspect it has something to do with the auto-exposure not working correctly.
Are you also seeing orange lights on your P1 photos, instead for a nice “glowy” red?
You can even see that on the tarmac the reflections look red, but the car’s actual lights are a dull orange-yellow shade.
The colours typically look off in cloudy, foggy and overcast conditions. But generally look fine when you’re driving at night or when the sun is completely out with very little clouds. However, when the brakes do look red, they are missing that bloom/glow effect that you see in real cars that do have “glowy” lights (LaF, P1, or other cars with ‘trippy’ looking LED brake lights).