General Motors Co. says it's investing about $38 million and creating up to 150 new jobs at its Lansing Grand River Assembly plant.
The plant assembles the Cadillac ATS CTS and STS, and it will make the next-generation Chevrolet Camaro beginning in 2015.
GM invested $190 million in the plant last year as it was preparing to roll out the ATS.
U.S. Sen. Debbie Stabenow called it "great news for Michigan and a testament to the skilled workers" at the plant.
The Michigan Democrat says the "investment further underscores the resurgences" of the American auto industry, which she says is fueling the U.S. and Michigan economic recovery.