Suspension Attachment: The lower control arm attaches the suspension components (such as the wheel hub and steering knuckle) to the vehicle's frame or body. Support and Movement: It supports the weight of the vehicle and allows the suspension to move up and down as it absorbs bumps and imperfections in the road. Design and Construction: Shape: Typically shaped like a triangular or wishbone, hence the name wishbone suspension. Material: Constructed from strong materials like steel or aluminum alloy to withstand the forces and stresses encountered during driving. Importance: Handling and Stability: The control arm plays a significant role in maintaining the stability and handling of the vehicle, especially during cornering and braking. Alignment: It helps in maintaining proper wheel alignment, which is crucial for even tire wear and safe driving.