When rolling your car into this crusher and the go to the control room, you will have your conveyor controls and then portal controls.
You have two buttons, one that activates the ground portal and one that activates the roof portal, and once you activate both (won’t work if only one portal is spawned) your car will begin to fall infinitely through these portals.
Once your car is falling you can then deactivate either portal to send your car at terminal velocity hitting either the roof or the floor, absolutely destroying the car.
The dimensions of the crusher is mostly tall, and leans more towards being a rectangular shape so it can fit bigger vehicles.
Main concern is the portal themselves and the complexity to get them working properly in roblox game.
Also yes, portal reference 