Hello! My system is. Intel I7 920 @ 3.6ghz 6gb DDR3 1600 ram Asus R9 280x DCUII TOP I am running the game at the highest settings, 16 x AF 8 x AA (forced in the CCC) 1920 x 1080 and during the day this is fine, it runs at between 150 - 250 fps. At night though, sitting on the grid with 20 cars around me, my FPS go down to about 20 - 40. This is no better than my HD6950 i just sold. Does anyone have a work around, or is the RFactor engine CPU hungry more than GPU? In the end i just avoid night races, still an amazing game! Is there a single setting that is hurting me (shadows perhaps?) that i can turn off to make night racing plausible. Many Thanks guys!