General Motors Co, Fiat SpA’s Chrysler Group, Toyota Motor Corp, Honda Motor Co, Nissan Motor Co and Hyundai Motor Co all reported year-to-year sales gains on Wednesday, but Ford Motor Co said sales fell slightly from a year ago. A Reuters survey of nine analysts showed expectations for a 10 percent rise in September to about 1.25 million vehicles, with sales during the month at an annualized rate of 16.7 million, well below the 17.5 million pace as in August.