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A pretty typical American summer vacation is loading up the car and going on a road trip to see some of this nation's history - Washington, D.C. or that harbor in Boston, for example. If you're a little more concerned about America's future, take a page from the video-happy McCullough family that's planning a trip called Our Renewable Nation. Long-time AutoblogGreen readers will recognize the family as the one's who brought you Darth Vader's Hummer and other videos.

Photo by Stewart. Licensed under Creative Commons license 2.0.

click to view more high-res images of the 2008 Dodge Grand Caravan SXT