The Leopard F31 was equipped with the DUET-SS "Super Sonic Suspension" II system that was also installed on other Nissan vehicles at the time, which featured a sonar module mounted under the front bumper that scanned the road surface and adjusted the suspension accordingly via actuators mounted on the strut towers. There was also a switch on the center console that allowed the driver to change between "Auto", "Soft", "Medium" and "Hard" settings on all models except the XS model, which removed the "Auto" selection.