The new 51-unit Hawthorne apartment complex "The 20" has 29 parking spaces packed into an area that could usually only fit 10, thanks to a high tech robotic car-stacking system. Check out the O's video:

The steel puzzle parking machine is made in Detroit, which is great, but the manufacturer applauds it as sustainable, which is questionable. Less area gobbled up by car parking means more area for high density housing along Hawthorne... but is there really such a thing as a "sustainable" parking spot? (well maybe these ones.)