Tried 10.8 this morning, I was on the 10.5 before. Dry roads daylight no sun. Acceleration on chill. FSD, average. Use a 4 mile course (same one I used before) on back roads little or no traffic. Similar problems as before but less pronounced. Crossing yellow center line when making right turns (no oncoming traffic) moving slightly left to make right turn and crossing yellow line when finishing turn (no traffic in intersection). The speed control is better entering and leaving the turn, on right hand curves still crossing the center line with no oncoming traffic. Not as much jerking in the steering as with 10.5. I cannot define or clearly state why or what made me feel more confident in the driving that I witnessed, it could be I am more accustomed to the moves the care makes or it could be the car is driving better, I really don't know (as I drive and use it more maybe it will become clearer). I agree with what others have stated about the display, blue/gray steering wheel needs to be larger and should be collocated with TACC. All warnings should be symbols and in a common location (upper left of screen) along with warning noise to alert you to check. The shifter position indicator (RPND) has changed from (RNPND) does not reflect accurately the neutral positon between R and P I don't know why they changed that. The fact that the D is blue as is the Wheel symbol when engaged could cause confusion. I liked the the light show a lot as did the grandkids.