Maltese is pretty closely based on the fight against organized crime in Sicily in the 1970s and early 1980s - the “years of lead” that followed the breakup of the “French Connection” and the re-routing of the drug trade through Sicily and NYC pizza joints. As a result it is full of Italian and European metal from the same period. It’s written by the same folks as Gomorrah, and the sets/locations/car casting are pretty close to perfect. If it seems a little cliched in points, it’s because those cliches came from somewhere, and that somewhere is often Sicily in the 70s.
Streaming on PBS Masterpiece here in the states, not sure about elsewhere.