What are air suspension systems?

Air suspension systems utilize air-filled bags instead of traditional mechanical springs or hydraulic fluid, which is what sets them apart from other suspension systems. These air bags can be inflated or deflated to adjust the vehicle's ride height, providing several advantages such as improved ride quality and increased load-carrying capacity. By varying the air pressure within the bags, the system can adapt to different driving conditions and loads, offering a more dynamic and customizable driving experience.

In contrast, the other options describe systems that primarily rely on solid or fluid components, such as mechanical springs or hydraulic fluid, which do not provide the same level of adjustability or comfort that air suspension systems offer.