In North America: Cars Displaying Miles and Kilometers
The practice of displaying speed in both miles per hour (mph) and kilometers per hour (kph) on speedometers in North America varies depending on the age of the vehicle and the manufacturer. Here, we explore the current trends and the historical context of this practice.
Miles per Hour (mph) and Kilometers per Hour (kph)
Traditionally, speedometers in the United States prominently display mph, with kph displayed in a smaller scale underneath. This practice is due to the fact that vehicles are required to be compliant with US standards, which mandate the use of mph for speedometers. However, this is not the only country where this practice is observed. For instance, Erik mentioned that he worked for a GM dealer in a location bordering Canada, where Canadian cars imported into the USA are required to have mph speedometers to meet US regulations.
Another example is an Audi that Erik purchased, which had originally been delivered in Canada. When it was exported to the USA, the importer was required to ensure that the vehicle met US standards, including the installation of an mph speedometer. This requirement highlights the importance of compliance with local standards in the automotive industry.
Modern Vehicles and Switchable Units
Modern vehicles, particularly those from manufacturers like General Motors (GM), offer a unique solution by providing the ability to switch between metric and English units on the speedometer and odometer. This feature can be activated with the press of a switch, making it convenient for drivers who may need to switch between countries or regions with different measurement systems.
For instance, when Erik worked for a GM dealer, he noted that companies that repaired instrument clusters offered a mode that converted Canadian units to mph and miles for vehicles imported to the USA. Such adaptability has become increasingly common as globalization and cross-border travel have become more prevalent.
Other manufacturers like Ford and Chrysler have similarly integrated this feature, allowing drivers to switch between metric and US units based on their needs.
Electronic Odometers and Unit Selection
With the advent of more advanced automotive technology, many newer vehicles now feature electronic odometers that allow the driver to select the preferred unit of measurement for distance travelled. On such vehicles, it is possible to switch between miles and kilometers at the touch of a button. This feature provides greater driver convenience and flexibility, catering to the diverse preferences of consumers.
For example, in some Toyota, Honda, and Volvo vehicles, the driver can switch between miles and kilometers as needed. This functionality aligns with user-friendly design principles and enhances the overall driving experience. However, it is worth noting that not all makes and models offer this feature, and some vehicles may only display miles by default.
Conclusion
The display of both miles and kilometers in a vehicle's speedometer and odometer in North America is a practical solution that facilitates cross-border driving and travel. While traditional vehicles often display mph prominently and kph in a smaller scale, modern and electronic vehicles offer greater flexibility through switchable units. This adaptability is a testament to the evolving nature of the automotive industry and the growing demand for user-friendly and customizable features.
Understanding the different practices and the evolution of these features can help drivers navigate the varied measurement systems they may encounter in North America and beyond. Whether it’s a 2023 Toyota, a 2022 Honda, or a 2021 Volvo, being aware of the unit selection options can make a significant difference in the driving experience.