A shame. There's only a few tracks that support dynamic lighting and weather in GT5 but it adds so much to the experience. Sunrise with the fog on Nurburgring, doing the final laps on Sarthe while the sun is disappearing will be missed.
It's not just nigh time, having the sun in different positions, overcast or sunny keeps the game fresh a lot longer.
Hopefully all racing sims next gen will have dynamic lighting.







