This is a semi-closed event, i.e. people just going to the Detroit auto show won't see Bangle -- but those who sign up for his speech via this link will.
http://www.autoweek.com/page.cms?pageId=48
Another speaker towards the end of the day is the designer of Cadillac's STS.
Officially, the Detroit auto show is NAIAS -- the North American International Auto Show. I've been twice in recent years, and it is SPECTACULAR. Patience is required to deal with the crowds, however, expecially on weekends.