Nissan Motor Co. plans to introduce a diesel version of the Maxima in the United States in 2010, says Chief Executive Carlos Ghosn, the Associated Press reports. In a speech to the Council on Foreign Relations, Ghosn said the vehicle would comply with emissions standards in all 50 states and provide improved fuel economy and lower carbon dioxide emissions. According to the AP, Ghosn declined to provide a new estimate for when the automaker will meet a key sales target. Nissan said earlier this week that it may need to push back its goal of selling 4.2 million vehicles worldwide in the fiscal year ending March 2009.