Shunt Theories to Date:
1. Poor sap who asked about the headlights one too many times.
2. Shunt is either the Stig or a close relative used by Team Camaro for testing at the track or whereever WOT is required.
3. Shunt is the optional Camaro Trunk Monkey.
4. When was the last time we heard from Scott, aka FBodFather? It has been awhile... about the time Shunt appeared on the interior pics? Maybe Shunt is actually FBodFather!!

The Camaro family picture tosses some doubt on it but it could be a clever forgery...