[3] The 3200-series contains many innovations over the previous 2600-series, including solid state computerized (microprocessor) control for much of the cab functions and traction system.

In addition, fluted steel siding is included on these cars for the first time since the 2200-series, in order to reduce graffiti.

At various points during their service life a small number were also assigned to the Yellow and Purple Lines.

[5] In addition to new LED destination signs, new LED run number boxes, including car 3458 (except cars 3227–28)[citation needed], new air conditioning systems are being installed, and the propulsion systems, passenger door motors, and wheel and axle assemblies were rebuilt.

However, it has been implied the CTA is choosing not to exercise the options, and instead will replace the 3200-series cars with a new fleet currently in the design stage dubbed the 9000-series.