Practice lap times are disabled. Don't know why & I have never seen them working.
Must of been an issue with them at one point.
If they where working run one would be lowest Downforce & 100% gearing
then add on 25% Downforce & minus 5% gears for run two
seeing the lap times would help you cheat the system :D
That could be interesting once it's enabled again.
Would mean setting the car up for the track instead of the driver.
What the driver likes doesn't mean it's the fastest setup :)