The 5-links are, in essence, a sort of evolution from the Double Wishbone. The Upper Wishbone and Lower Wishbone are basically split into 2 separate links. The resulting setup consists of 2 lower and 2 upper control arms, and a Toe control arm (which is the Tie Rod from the Double Wishbone setup). The Upper and Lower Control arms, in combination, are designed to counteract the Braking, Acceleration and Roll loads. The Toe Arm counteracts the Aligning Torque that tries to steer the wheel when the vehicle corners.