What do range tests evaluate in electric vehicles?

Range tests evaluate the actual distance an electric vehicle can travel on a full charge. This is a critical measurement because it directly informs potential buyers and users about the vehicle’s usability and practicality for daily commutes and long trips. Understanding the range allows consumers to assess whether an electric vehicle meets their individual travel needs without the risk of depleting the battery during a journey.

While the other options relate to aspects of electric vehicle performance, they do not specifically address the purpose of range tests. For instance, the maximum speed of the vehicle and the efficiency of the battery serve distinct roles that do not correlate with range testing. The time taken to charge the battery is also important for overall user experience but is separate from distance evaluation, which is the focal point of range tests. Hence, option B is the most accurate representation of what these tests are designed to measure.