* Condition of the vehicle: A well-maintained engine and transmission will perform better than one that's neglected.
* Aerodynamics: Added weight or modifications affecting aerodynamics will impact top speed.
* Road conditions: Headwind, uphill grades, and road surface all play a role.
* Gear ratios: Slight variations in gearing between different models could affect top speed.
Keep in mind that reaching the top speed safely requires appropriate road conditions and legal driving practices. The stated range is an approximation and not a guaranteed figure.