I love the idea of split times on tracks, that will help find where you are screwing and can improve.
Now if you had online comparison split times listed in with final race time in records, it would be even better, you could see where on the tracks those above you were constantly faster.

Also finally some common sense about reducing the rain effect on Manahatta, I've hated it from day one, although the last few builds have lessened it considerably to some of the first few builds where it seemed you were racing through a monsoon.