Since 1999 and on the initiative of PHILPA, which was supported by many other Athenian and non-Athenian Associations, the Old Car area was organized around a secondary body, the ''HELLENIC ASSOCIATION OF OLD CAR & MOTORCYCLE FRIENDS'' - ''E.O. PHILPA''.
PHILPA is the largest member club of the ''E.O.PHILPA'' and participates in the General Assembly of this club with numerous representation, determined by the number of certified vehicles which have been registered by the club's Members in the Association's membership. The 9 members of the Board of Directors participate automatically and in accordance with the Statutes in the body of Representatives of ''H.O. PHILPA'', which is completed by Ordinary Members, appointed by relevant decisions of the Board of Directors of PHILPA, which they represent.