Irony of the week: Not only is NASCAR working to promote the Environmental Protection Agency's SmartWay program that pushes fuel-efficient vehicles, but its drivers are also now getting into the act. Current Sprint Cup champ Jimmie Johnson tells us he drives an E85 Chevy Tahoe and conserves at home. "I want to do my part, even though it might sound crazy," he says. "We've gone through the house, and we're changing all our light bulbs with those crazy-looking light bulbs to make sure we save energy. I love our world. I want to do my part," says No. 48.
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