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He's called "The Car Czar." Robert Lutz developed some of the biggest, baddest muscle cars in the world. He spent decades keeping major car companies in the black. Now, at the age of 75, he's determined to turn them green.

He's called "The Car Czar." Robert Lutz developed some of the biggest, baddest muscle cars in the world. He spent decades keeping major car companies in the black. Now, he's determined to turn them green.

This is an unusual love story involving an 89-year-old woman and her beloved Chariot. The two have been together for decades and traveled more than 540,000 miles across this nation's highways and side streets.