This SAE Recommended Practice establishes consistent test procedures for determination of steady-state directional control properties for passenger cars and light trucks with single axles. These properties include the

gradients

with respect to lateral acceleration of steering wheel angle, understeer/ oversteer, sideslip, roll angle, and steering wheel torque; the

gains with respect to steering wheel angle of yaw velocity, lateral acceleration, and sideslip; the characteristic speed or critical speed ; and the total, steering, and tire compliances at the front and rear wheels.