Jan 15, 2007 (From the CalCars-News archive)
This 12-minute video looks like a work-in-progress (repetitive/poor image/voice synchronization, makes the car looks noisy and underpowered.) but has some interesting comments from GMers:
Tony Posawatz, Volt Vehicle Line Executive Bruce Boniface, GM Director of Advanced Design Therese Tant, Volt Lead Designer . Then Wagoner and Lutz at the end.
http://www.autospies.com/news/DETROIT-AUTO-SHOW-GM-Volt-Concept-in-Action-11478/ It's credited to Autospies.com, but I can't find the original there...did find an earlier story with no video and over 130 comments http://www.autospies.com/news/Chevy-Volt-Concept-Has-The-Toyota-Prius-Met-its-Match-11559/