I see you are getting closer to my times.
I also did the same boboo as you. When i got my Denso top time, which is better than the Toyota time, i forgot to save the replay, and only saved the game.
I think i might have to pull the car out of the garage soon, because you are getting really close to my times.
I think 1.06.4xx is possible, can only be done with a first split of 21.7xx, and second split of 47.0xx.
Have only got 21.797 once, and 47.1xx almost all the time.
If i can pull off 21.7xx, and get the rest of the track right, should be a sure thing that i will get in 1.06.4xx area.