Most others have growth plans as well, including Peugeot SA, which expects to more than double sales to 6,000-plus by 1997. "Ultimately, we should be able to sell 20,000 cars through (100) dealers," says Richard G. Murray, president Inchcape Peugeot Japan Co. Ltd. French rival Renault SA expects to double sales in 1996, from about 1,500 vehicles this year.