A sliding pillar suspension is one in which a wheel is positioned laterally and longitudinally by a circular piece which slides vertically along a simple rod (the pillar). Most sliding pillar designs use a concentric spring around the pillar, resembling a non-damped strut or coilover. This suspension type was designed for the three-wheeled Morgan cars, and was patented by H.F.S. Morgan in 1910. The Lancia Lambda used a pair of sliding pillars as the first independent suspension in 1922. Use of this design continued through the 1960s on certain automobiles, and was finally abandoned by Morgan in 2000's Aero 8 .