The cars generally get recovered (they're used to commit further crimes, not so much chop-shopped), but the M.O. of a carjacker is to hand the car off quickly to an accomplice who didn't participate in the robbery, and from that person to someone else, which makes arresting the person who committed the actual armed robbery hard. I'm certainly not trying to tell you that Chicago reliably arrests carjackers.

You said you didn't believe OP's friend about being carjacked and the police not giving chase in a certain area. The clearance rate of carjackings and that chase rate are quite low. All that need to exist is a non-zero carjacking rate in that rate for what OP said to be true.

I don't know what the loop is, but could probably find Lincoln Park, but in general looks like you could use official data to disprove the claim: https://data.cityofchicago.org/widgets/dfnk-7re6?mobile_redi...