The Twilight Limited was a named passenger train in the United States which initially operated between Chicago, Illinois, and Detroit, Michigan.
Amtrak renamed the train St. Clair, feeling that the name "Twilight Limited" had undesirable connotations and imagery for a company trying to save passenger rail service.
[2]: 194 By mid-1976 Amtrak had three round-trips on the Chicago-Detroit corridor; these were all named Turboliner after the French-designed gas turbine RTG trainsets which operated on the route.
This service pattern remained mostly uninterrupted until 1994, although budget problems led to the westbound Twilight Limited running tri-weekly (Friday-Sunday) between 1986 and 1990.
On April 26, 2004, Amtrak dropped individual names on the Chicago-Detroit corridor and the Twilight Limited (along with the Lake Cities) became one of three Wolverines.