A photographer takes a picture of a Chevy Malibu hybrid car on display on West Executive Drive at the White House in Washington April 22, 2009. As part of the procurement process of a new White House fleet of vehicles, the White House invited the three American car makers, GM, Ford and Chrysler to participate in a green vehicle market research day, on the occasion of Earth Day. REUTERS/Jason Reed (UNITED STATES SPORT MOTOR RACING BUSINESS)