My town Pasadena,Tx, bought a bunch of crown-vic backups a few years back. Now they are in service. They have been buying chargers. I still see some new crown-vics in storage.
They buy the chevy police suv for city DOT.About 5 miles of HWY 225 runs through our city from the industry and the houston shiping ports. They chase down the truckers and guide them to an inspection station.
They also use the chevy suv for K-9 units.