Think having the chance to drive your new sports car on a closed test track and handling course might be enough to close the deal? Porsche thinks so. At the groundbreaking for its new North American headquarters in Atlanta, the automaker announced that the 26.4-acre campus would include a 1.6-mile test track where dealers will be able to bring customers to experience the full capabilities of the company’s cars. Porsche calls it the Customer Experience Center and says it is an industry first.