Vietnamese electric vehicle manufacturer VinFast(VFSluckytime.US) fell 15luckytime.5%luckytime, quoted at $5.34. On the news front, the National Highway Traffic Safety Administration (NHTSA) said on Monday that it has investigated the incident in April this year.luckytimeA formal investigation has been launched into a collision involving a VF8 SUV made by Vietnamese electric vehicle manufacturer VinFast that killed a family of four.