I believe the first video was of the "normal" non-Laguna Seca Boss, even if it was lapping Laguna Seca.
Saw this on another site
The on track driver is NOT anyone from Motor Trend. There's no way anyone from that rag could be that fast. The driver is actually Jonathan Bomarito, winner of the 2010 Daytona 24 in the GT class.
The car exits the garage in the wrong direction and it's also going backwards down pit lane. Excellent work from Team Motor Trend.