Rain light - missed opportunity
I was thinking about the whole expensive rain light BS and realized what a missed opportunity there was.
Say this thing was produced with multi-color LEDs, a CAN bus and/or a steering wheel switch panel. We could have had a useful driver signaling device.
Could be used in conjunction with Flagtronics, as a secondary means of signaling that might be as visible to the driver as the cockpit display.
You could use it on practice days like YELLOW - rookie/I'm just learning the track. FLASHING RED - hard broke, just rollin' along (perhaps triggered from the dash under a set of pre-programmed conditions), etc.