By Rob Lenihan VinFast says its vehicles are ‘differentiated, especially across the emerging EV space.’ Here’s what the company is touting. VinFast, the Vietnam-based electric-vehicle maker, is shifting into high gear. The company on Dec. 7 said it had filed for an initial public offering with the U.S. Securities and Exchange Commission. The company plans to list on Nasdaq under the ticker symbol VFS. The number of shares to be offered and the price range have not yet been determined, VinFast said. Citigroup Global Markets, Morgan Stanley, Credit Suisse and J.P. Morgan Securities are the lead …