There are several reasons why vehicles are designed to go faster than the posted speed limits:
Flexibility: Vehicles with higher maximum speeds provide drivers with the flexibility to drive at higher speeds when it is safe and legal to do so. Speed limits are set based on various factors such as road conditions, traffic density, and safety considerations. However, there may be situations where it is permissible to drive at higher speeds, such as on certain highways or racetracks.
Performance and capability: Higher speed capabilities in vehicles often come as a result of advancements in technology and engineering. These capabilities may be desirable for certain purposes, such as emergency response vehicles, racing cars, or vehicles used in specialized industries. Additionally, a vehicle's speed capability may be an indicator of its overall performance and capabilities in terms of acceleration, handling, and power.
International markets: Speed limits vary across different countries and regions. Some countries have higher speed limits on certain roads or have fewer restrictions on higher-speed driving. Automakers design vehicles with varying speed capabilities to cater to different markets and consumer preferences worldwide.
Future-proofing: Vehicle manufacturers anticipate technological advancements and changes in regulations. By designing vehicles with higher speed capabilities, they ensure that their products remain relevant and adaptable to future changes in speed limits or road conditions.
It's worth noting that even though vehicles may have high-speed capabilities, it's important for drivers to always adhere to the posted speed limits and drive responsibly, taking into account road conditions, traffic, and safety considerations. Speeding can significantly increase the risk of accidents and endanger the lives of both the driver and others on the road.