NYT: Mercedes-Benz, as part of its collaboration with Tesla Motors, will produce 500 battery-powered “E-Cell” versions of its small A-Class, introducing the car at the Paris auto show in October. According to Shirin Emeera, a Daimler spokeswoman, details of the electric car will be announced on Sept. 15. She said the car would be produced at the Mercedes Rastatt plant, near Stuttgart, Germany, where the A-Class (which is not sold in the United States) is produced. Delivery of the cars will …