Bob Babyok of Warner Robins is the proud owner of a Nissan Leaf. "It's like driving an iPod," he says. The Leaf is a 100% electric car. Babyok leases it for about $140 per month, including electricity. He says enjoys being able to commute gas free. "Normally, I would anticipate here in Warner Robins maybe 80 miles to a charge. My commute's about 40 so I only technically need to...