Police Interceptor (PI), by far, referring to Taurus and Explorer released after 2013. However,

Ford did not name these two models with “Taurus” and “Explorer”, but with “Sedan” and “Utility” instead.

Here’re all model names in Ford’s police interceptor official site now.

Whereas, before 2013, Ford added the common model names to its police models, such as Ford Crown Victoria Police Interceptor.

Here is a snapshot of its site at that time.