* Gear ratios: Specific gear ratios in the automatic transmission varied.
* Rear axle ratio: Different rear axle ratios were available, significantly impacting top speed.
* Vehicle condition: Tire condition, engine tuning, and overall vehicle maintenance all play a role.
* Aerodynamics: Even minor differences in bodywork or accessories can affect aerodynamic drag.
* Weight: Any added weight (passengers, cargo) will reduce top speed.
While magazines and road tests of the time might have given estimated top speeds, these are subject to variations in testing conditions. Expect any quoted maximum speed to be an approximation, likely in the range of 115-130 mph, but likely closer to the lower end of that range due to the car's relatively high weight and the typical gearing for that era. It's unlikely to have reached speeds significantly higher than that given the technological limitations of the time.
