* Gear ratios: The final drive ratio in the rear end will significantly impact top speed.
* Tire size: Larger diameter tires will lower the top speed for a given engine RPM.
* Aerodynamics: While the WS6 is relatively aerodynamic for its class, any modifications affecting airflow (e.g., spoilers, ground effects) will have a subtle impact.
* Engine condition and tuning: A well-maintained and tuned engine might achieve a slightly higher top speed than one that isn't.
* Road conditions and elevation: These external factors can also affect the achievable top speed.
While you won't find a single definitive number, most sources suggest a top speed in the 145-155 mph range *under ideal conditions*. However, reaching these speeds requires a long stretch of road, optimal conditions, and potentially some risk. Remember that exceeding posted speed limits is illegal and dangerous.
