The IS Convertible features driver's and front passenger's knee airbags [1] as well as front seat-mounted side airbags to help protect the occupants. Sensors determine the speed of deployment for the driver's side airbag based on the position of the driver's seat on the seat track. Also included is a twin-chamber airbag for the front passenger, which features an indentation at its center to help disperse the forces immediately after deployment.