The design of the new church building enabled Schuller to preach his sermons to worshipers in 500 cars, as well as to members of the congregation inside the church [REF].
A "Tower of Hope" building was added on the north side of the drive-in church building in 1968; the Tower of Hope rose 13 stories (approximately 130 to 150 feet in the air, the highest structure in Orange County at that time, and was topped by a cross.