* Specific Modifications: Both cars could have aftermarket modifications affecting performance significantly. A heavily modified Z28 could easily outpace a stock WS6, and vice-versa.
* Driver Skill: A skilled driver can extract more performance from either car.
* Track Conditions: Weather, track surface, and even elevation can impact performance.
* Condition of the Vehicles: A well-maintained car will always perform better than a neglected one.
Generally speaking: Both cars are very close in performance, with slight advantages shifting between the two based on the above factors. The 2000 Pontiac Trans Am WS6 *generally* holds a slight edge due to its slightly higher horsepower and torque figures from the LS1 engine in many comparisons. However, the difference is often within the margin of error of testing. Real-world races could easily go either way.
