An earlier version of 4 Green Stars story included an incorrect sales number for Toyota's Prius. The number has been corrected.
TheStreet) -- Green cars took center stage at the press preview of the Detroit Auto Show this week.
In fact, two of the Big Three U.S. automakers,
(F - Get Report) and
(TM - Get Report), focused primarily on expanding electric-car families.
(GM - Get Report) had already rolled out the Volt with a massive publicity effort that included a national tour. At the show, GM CEO Dan Akerson told reporters: "The Volt will help us change how people think about Chevrolet."
(TSLA - Get Report)
opened the door a little wider on its Model S sedan, showing more of the engineering features in a "body in white" display.
Edmunds.com senior editor John O'Dell, who oversees the company's blog, GreenCarAdvisor.com, notes that in Detroit, 11 manufacturers showed plug-in models, of which only three -- the Volt, the Tesla Roadster and the Smart ED -- are actually on sale in limited markets.
Here are the four top green cars at the show.