The dimensions of the rubber that connects a specific vehicle to the road are a critical factor in vehicle performance and safety. For a particular model year of a mid-size sedan, these dimensions define the physical specifications of the tires originally equipped by the manufacturer.
Correct dimensions ensure optimal handling, braking, and fuel efficiency. Deviating from the recommended specifications can negatively impact these characteristics and potentially compromise safety systems such as anti-lock brakes and electronic stability control. Historically, manufacturers have specified a limited range of acceptable sizes, balancing performance, comfort, and cost.