Eco-Friendly Cars ChallengeHeide B. Malhotra examines the hype around electric and hybrid plug-in vehicles, and the implications of their consumer and government use in the USA.Friends Read FreeSaveHYBRIDS SCUTINIZED: Bill Ford, executive chairman of Ford Motors stands with (L-R) different hybrid cars during the 2011 North American International Auto Show Jan. 10 in Detroit, Mich. (Stand Honda/Getty Images)By Heide B. Malhotra6/15/2011Updated: 10/1/2015Print