It is difficult to make original cop movies nowadays. So, Crown Vic is not original but in some ways is great.
First, I really love movie's pace. It's only one night but what a night. Pretty well shot.
Second, the acting of both main roles is pretty good also the secondary actors. No overacting.
And last, the script it is the weak part because with a little more risky one, this movie could have been a masterpiece.
So, overall a good cop thriller but not excellent.