Rotors, Brakes, A/C Unit, Vibration.
Nice car, very beautiful, but car has problems that I believe a 2000 Cadillac should not have.
Would you care to describe your problems in any meaningful detail? That is sort of the point of this site.
No I do not! My problems are quite confidential.
Well, then we'll have to assume the problems are all in your head.
The poster's attitude to keep his problems "confidential" may be why he can't get them fixed, as he put it.
The DeVille was all-new for 2000 so this might explain the problems: bugs not fully addressed in the manufacturing process.