https://goo.gl/maps/QfSKNsSbNG14iiV69
Noticed how the cars are parked on a series of lifts in this NYC public parking lot.
Just off Hollywood & Vine. (https://goo.gl/maps/Xyj5p7xM6acEEF4b8)
Mad Magazine also proposed many similar parking solutions in one article from the 70s. https://comics.ha.com/itm/original-comic-art/complete-story/al-jaffee-mad-184-page-original-art-group-of-4-ec-1976-inventive-al-jaffee-engineers-mad-solutions-to-big-city/a/16075-17471.s