The Volt, which is expected to let drivers travel up to 40 miles on electric power alone and be available in 2010, would provide a glimpse into the automaker's future on a day devoted to celebrating GM's history and impact on Detroit, the state and the world. After stepping out of the Volt, Lutz said the hybrid vehicle will help re-establish GM as a leader in technology and fuel efficiency, a title the automaker has lost over the years. 'With one fell swoop, the Volt will erase that' misconception, Lutz said, adding the vehicle should be available to consumers in November 2010. Fritz Henderson, GM president and chief operating officer, said no single vehicle will change GM's fortunes. 'I'm not sure there is a single game changer,' he said. 'My view is you change the game one step at a time. We're excited about this but it's not the only step.' Both Henderson and Wagoner pointed to the automaker's other research, which includes developing biofuels, hybrid, plug-in and fuel cell technology -- as part of a broader effort to change the game. Inside the RenCen, a century's worth of candy-colored concepts and classics filled the lobby and ground floor. There was a pistachio-colored 1952 Saab 92 near an orange 1963 Corvette Sting Ray coupe. Close by was a candy-apple green 1973 Opel GT. Several concepts also were on display, including the Cadillac Provoq, Chevrolet Beat and Buick Riviera. GM employees ringed every level of the three-story Wintergarden, where a giant video screen beamed a broadcast to their colleagues around the world. You can reach Robert Snell at (313) 222-2028 or [email protected].