What is the function of the stabilizer bar in a vehicle?

The function of the stabilizer bar, also known as an anti-roll bar or sway bar, is primarily to keep the vehicle level during turns. It helps reduce body roll, which occurs when a vehicle tilts to one side while navigating a curve. By connecting the left and right suspension systems, the stabilizer bar distributes the load more evenly, mitigating the outward leaning of the vehicle during cornering. This contributes to improved handling, stability, and driver confidence, as it helps maintain traction on all wheels, ensuring a more balanced driving experience.

While the other options mention important vehicle components and functionalities, they pertain to different aspects of vehicle dynamics. Supporting the engine relates to other structural components, enhancing brake performance is a function of the braking system, and improving fuel efficiency involves various factors ranging from engine performance to aerodynamics. Therefore, the role of the stabilizer bar in maintaining vehicle balance during turns is distinctly targeted and crucial for overall vehicle handling.