General Motors is celebrating its 100th anniversary on September 16th--and there are some hints that it could use that day to show the final production version of its Volt hybrid vehicle, according to thecarconnection.com.

GM says its "GMnext Day" will "focus on the future of automotive transportation." Starting at 8:30 in the morning Detroit time, the automaker will start with a live global broadcast to its home crowd and to its outposts in Europe, Asia, South America and next door in Mexico. The broadcast, GM says, will talk about new technology and new products, "along with a few newsworthy surprises."

Throughout the day, starting at 10:30 in the morning, GM will put its execs in a chat room on their Web site, GMnext.com, to talk about the events. Then in the afternoon, industry experts will hold a roundtable that explores the future of transportation. And finally, GM will host an "Everyday Heroes" event that will recap the day's events.