When U.S. Energy Secretary Steven Chu first took office in 2009 he was not a very big fan of hydrogen fuel cells but things have changed, including the secretary's stance on hydrogen. Volvo says it’s looking for a partner in North America within the next 5 to 6 years to produce vehicles. Nissan-Renault CEO Carlos Ghosn is considering retirement before the company’s next mid-term review which is five years away. All that and more, plus we head down to Smyrna, Tennessee to pay a visit to Nissan’s sprawling manufacturing campus in this week’s Autoline This Week preview.