January 21, 2015 5:10 pm CTA's 1976 Rail Cars to be Retired The CTA is retiring its 38-year-old 2400-series rail cars with eight cars of the series taking trips Wednesday around the Loop and on other routes. NBC Chicago’s LeAnn Trotter reports. Local 2:29 Chicago Forecast: Cloudy Saturday, Rain Sunday 2:28 Chicago's Forecast: Temps Stay Mild 2:20 Chicago Forecast: Warmer weekend weather 1:52 Stock market roller coaster continues, experts weigh in 2:31 Chicago's Forecast: March Ends on a Chilly Note