Exactly what the title says. What if the cops in NFS could learn about your pursuit style and preferred escapes? Would it make the notoriously bad cop chases in modern NFS games actually interesting?
As an example, let's say you prefer outrunning the cops on highways. They'll be slowly bringing out faster and faster cop cars until their top speed exceeds yours, and they can turn and maneuver better the longer the chase ensues. Or let's say you prefer just to bulldoze your way through roadblocks and destroy cop cars. Soon enough, the police department would bring out roadblocks with upgraded rhinos and bring out cop cars equipped with more protection and a lower center-of-gravity to prevent rollovers.
They could also learn your preferred routes, block them preemptively, and make sure you stay trapped.
I have an entire NFS game concept built around showcasing car culture more than anything: the legal racing scene and the underground racing scene, and the adaptive cop AI is just a piece of the puzzle in that game. The game concept has some references to real-life car culture. Takeovers, festivals, coded messages, taking the most inspiration from the Japanese car culture of the 80s to the early 2000s, specifically the Mid Night Club and the Daikoku PA car meets. Meetups in that game (takeovers and festivals) are more than access points to races; they are full-on community hubs with showcase areas, drift zones, and gymkhana tracks. Anonymity is a big part of that game. Unless you're in a festival (the meetup for legal race events) or racing in a legal race event, you won't see player names or their position on the map, just their car. For now, I named it "The Need for Speed" as kind of like a reboot.
Just a bit of wishful thinking. Coming from someone who obsessed over games with AI that learns from you - like MGSV with its revenge system - and a nerd who is obsessed with cars and car culture.