Which mustang is faster cobra or gt roush?

There's no single answer to whether a Mustang Cobra or a Roush Mustang is faster. It depends entirely on the specific year and model of each. Both Cobra and Roush are designations that have been applied to Mustangs across many generations, and each generation had different performance specifications.

* Cobra Mustangs: These were factory-produced performance versions of the Mustang, often featuring supercharged engines and significant performance upgrades. The performance of a specific Cobra (e.g., a 2003 Cobra vs. a 1993 Cobra) varied dramatically.

* Roush Mustangs: These are aftermarket modifications to Mustangs, typically involving engine tuning, suspension upgrades, and cosmetic changes. The performance of a Roush Mustang depends entirely on the specific modifications made, as Roush offers various performance packages. A Roush Stage 3 Mustang will be vastly different from a Roush Stage 1.

To determine which is faster, you'd need to specify the exact year and model of both the Cobra and the Roush Mustang being compared. Then, you could compare their horsepower, torque, and other performance figures.