Tomek / DriverTalk

Tomek / DriverTalk

Ghost Yellow

“Ghost yellow” is an unofficial term used by drivers and commentators to describe a yellow flag warning with no visible incident. Sometimes caused by a late-cleared flag, a marshaling error, or leftover race control signals. It’s maddening in qualifying —…

PU Modes

Short for Power Unit Modes, these are settings drivers can adjust during a race to manage engine performance, fuel consumption, and hybrid deployment. In the glory days of “party mode,” Mercedes drivers could summon extra horsepower at the press of…

Clerk of the Course

The Clerk of the Course is the event-side authority responsible for making sure the race actually happens safely and smoothly. They control track operations, marshal coordination, red flag procedures, and all the “you don’t want this to go wrong” logistics.…