An Audi employee works on an engine for an Audi A3 automobile, produced by Volkswagen AG's Audi brand, as the unit moves along the engine production line at the company's plant in Ingolstadt, Germany, on Monday, March 11, 2013. Audi, the world's second-largest maker of luxury vehicles, plans to spend 13 billion euros ($17 billion) through 2016 to develop new cars and expand production capacity as it pursues Bayerische Motoren Werke AG's sales lead. Photographer: Guenter Schiffmann/Bloomberg via Getty Images