Chicago Transit Authority: 2021 CRRC Sifang America 7000s series cars in service on the Orange Line. Here's a video of them entering and leaving Roosevelt on the Orange Line.
There are 400 cars on order as of now. These cars will be replacing the 2600s cars, which currently run on the Orange, Brown, and Blue Lines. If the option order is excerised, they will also replace the 3200s, which are on the Blue and Brown lines.
