The US Environmental Protection Agency took a step closer to approving E-15, but so far it's limiting that approval to cars built since 2007. The Chinese government confiscated seven of BYD’s factories saying it built them on land that was zoned for agriculture. Researchers successfully hacked into a car by intercepting wireless tire-pressure monitoring signals. All that and more, plus John answer's your questions about the Chevy Volt and the Ford C-Max in "You Said It!"