In 2000 , the Smart exceeded its revised sales target, and interest in the vehicle was growing. Wolf-Garten GmbH & Company , a German gardening equipmant company , announced plans to convert the Smart to a lawn mower suitable for use on golf courses. A convertible and diesel-engine edition have been added to the product line. In 2001 , executives at DaimlerChhrysler announced plans to research the U.S market to determine prospects for the Smart. The a announced came as Americans face steep increases in gasoline prices.