Wixom is a city in Oaklan County in the U.S. state of Michigan. The population was 13,263 at the 2000 census. The city is home to the former Wixom Assembly Plant, a Ford Motor Company plant. The Lincoln LS, the Ford Thunderbird, and the Ford GT were all manufactured there. The Town Car production has moved to the St. Thomas, Ontario, Canada assembly plant. This plant has been shut down as of May 31, 2007.