Which of the following correctly describes a passenger car?

The definition of a passenger car is best captured by the description that it accommodates between 1 to 15 passengers. This classification aligns with standard definitions used in transportation and traffic laws, identifying a passenger car as a personal vehicle intended for the transportation of people rather than goods or commercial purposes. By specifying the passenger capacity, this definition encapsulates the intended use of the vehicle and differentiates it from trucks or commercial vehicles designed primarily for cargo.

Other descriptions, such as those focused on commercial use or goods transport, do not accurately reflect the purpose of a passenger car, which is primarily meant for the transportation of individuals. Additionally, terms that ascribe features like being "locked" or not having capacity for passengers misrepresent the basic characteristics of passenger vehicles, which inherently involve passenger transport. Therefore, the chosen answer is the most accurate representation of what a passenger car is.