Once a symbol of rugged excess, the Hummer brand dominated the early 2000s. But what led to its dramatic fall from popularity? In this video, we dive into the rise, decline, and eventual resurrection ...

INNSBRUCK, Austria, Sept. 22 (UPI) -- The Hummer, to many, is more than a vehicle -- it's a symbol of greed and waste or a symbol of America's frontier, U.S., Canadian and Austrian researchers say.