guess I wasted 5 minutes :)
F1 - Info
F2 - Standings
F3 - Lap Times
F4 - Tires
F5 - Pit Plan (I like this). Use Arrow Keys to adjust.
F6 thru F11 - Not used
F12 - Screen Capture
P Key - Pause/Resume
[ and ] - Brake Bias (I like this)
H - HUD (Off, Low, Medium High)
C - Look Left
V - Look Back
B - Look Right
M - Mirror On/Off
Someone mentioned Alt-F turns on the Frame Meter. Doesn't work for me.
If you know of others please add to this list!
-Larry