Complex sentence: The Cadillac ATS is a compact luxury sedan manufactured by the Cadillac division of General Motors at the Lansing Grand River Assembly plant in Lansing, Michigan, United States.
Split into simpler sentences: The Cadillac ATS is a compact, luxury sedan that is marketed by the Cadillac division of General Motors. GM's assembles the ATS at the Lansing Grand River Assembly plant in Lansing, Michigan, United States.