PR Chevy Volt changes messaging, sales go up The car’s initial storytelling push focused on its technical aspects. That pulled in a die-hard audience, but the more recent approach of letting customers tell their own stories has coincided with a sales boost. By Matt WilsonFeb. 28, 2013 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.