Birch, though, keeps each car on its own steel bed, which is lifted to its berth in one of the long, five-car-high avenues which are jaw-dropping in their scale.

Your car will be connected to a battery charger, which is monitored by an app, so it’s always ready to go. Each car is lifted to—or lowered from—its berth in one of the long, five-car-high avenues, ...