This is #4 of 7; I haven't seen #5 yet on youtube. If you skip in about 7 minutes, Mr. Wagoner talks about the Volt that he "Doesn't rule out sharing Volt technology" in the future, and about just how much is riding on the volt's success.

http://www.youtube.com/watch?v=pDC69EKIjHo

#5 of 7, lots more about the Volt.

http://www.youtube.com/watch?v=Gv4sxa93w1U

Here is the full 1-hour video. Lots about the Volt in the last part of the video. Enjoy.

http://www.charlierose.com/shows/2008/8/18/1/part-one-of-a-look-at-gm-with-ceo-rick-wagoner