* Fastest 0-60 mph: This would likely belong to a recent model with a high-performance V-Series engine, such as the CT5-V Blackwing. These cars are engineered for rapid acceleration.
* Fastest top speed: Again, a CT5-V Blackwing or a similarly equipped model would likely have the highest top speed, though the exact figures vary slightly depending on testing conditions. Manufacturer-stated top speeds aren't always precisely matched in real-world testing.
* Fastest on a track: Track performance depends not just on raw power, but also handling, braking, and aerodynamics. A finely tuned, high-performance Cadillac could outperform a less-refined but faster-accelerating model on a racetrack.
In short, while a Cadillac CT5-V Blackwing is a strong contender for the title of "fastest" in most categories, the precise answer depends on the specific metric used to measure speed.