Sinclair, (March 17, 1932 – May 10, 2009) was an American automotive industry executive who served as Chief executive officer of Saab-Scania of America from May 1979 until September 1991, where he helped improve the popularity of Saab's cars by convincing the parent company to manufacture cars with high-end options such as turbochargers and a convertible version of its Saab 900 that was designed to appeal to American consumers.