The anti roll bar is an essential component in a car's suspension system, which helps to reduce body roll and improve handling. However, it is sometimes referred to by various synonyms, such as sway bar, stabilizer bar or torsion bar. These names all describe the same device, which works by connecting the two wheels on a single axle, allowing them to move in unison and reducing the amount of body lean during cornering. Despite the different names, they all serve the same purpose and are crucial to the overall stability and performance of a vehicle. It is essential to maintain and replace the anti roll bar when necessary to ensure optimal driving conditions.