One could use an electric winch with a switch. The track would have cables at each of the lift points and all would run across their own pulley turning the cable at a right angle towards the winch above the rafters. If there were six cables, there would be six spools that each would wrap up its own cable. This would ensure that each of the cables wound up the same amount of cable per turn of the winch to lift all points evenly.
Another cool trick would be to tile the ceiling and put tiles and fluorescent lighting inset under the track so it would simply rise into a recess in the ceiling, blend in and no one would know it was there.
Like a Jame Bond villain prop, one switch would cause the track to dramatically drop down from the ceiling, to the awe of everyone witnessing it! (A James Bond villain would probably close the deal by creating self-deploying legs as it came down.) The only down side would be the cables from the track to the ceiling (which could be unhooked, I suppose).
Just a thought...
During my six years of Retro racing, my aspiration to be a mediocre racer has come and gone; my peers now assure me I have peaked (some time ago)!
The only thing I know about slot cars is if I had a good time when I leave the building! I can count the times I didn't on one hand!
Entitlement: The notion that one can have their slot car racing and EAT IT, too!
Slot Car Speedway and Hobbies, Longmont, CO, Home of the 155' Hillclimb track featuring the THUNDER-DONUT - "Two men enter; one man leaves!"