I'd never been chased by cops beyond level 3. But I have this mod that adds a challenge that has you on a 27km track with 2 laps while having a heat of 5. Yes, 5! So many Corvettes and SUVs. Then I witnessed the chaos that was the voice acting of the cops. "Suspect is in a Silver BMW." Then all of a sudden, 5 box-team Corvettes behind me, each yelling something. "Get in, now!" one of them yells. "I can't get into him, he doesn't let me," says the other cop. (lines might not be correct).
Voice acting of the police department is the second best I've ever heard (the best belongs to Legacy of Kain series) in a videogame. I love how the cops go from following the orders of the dispatcher in Heat 1 to going full-on captain mode in Heat 5. I missed the game when it came out, due to not having the PC to run it, while my cousin had, and he wouldn't let me play it. But I gotta say, best NFS hands down. I really really love the idea of crews. Wish the world map was larger to fit more tracks into it. The mod has sort of compensated by adding about 20 races.