Been awjile, but just completed the two latest races. Thought the "real" Fuji Speedway race, would be pretty good. Found it boring.
The Catalunya race was much better. After I passed for the lead, the top 8(newer) cars stayed with me for the remainder of the race. Even when traffic slowed them down, the AI kept me in their sights. Just ready to pounce if I made a mistake.
Was cool to watch the replay telemetry, via the track map and see how close all the cars were. Second placed AI finished 1.8 seconds behind me with the 9th placed AI, 6.5 seconds behind me.