-YOU GET NO KUDOS FROM ME-
Turn my back on this whole world and leave it all behind
This place is not my home. It's got nothing for me
Only leaves me with emptiness And tears in my eyes"
PSMVP: Motivated. Vigilant. Passionate.
Easy, very basic but it works, First make a cylinder of whatever material you want it to be, make it to all 3 levels (front middle back). After you make it big, place it, then slightly make it smaller without moving it, then delete it, now you have a "loop". NOW, delete the bottom left portion of it so the car or whatever can get through, this part gets a little bit tricky. Follow me here, you have to delete the bottom right portion of the loop and replace it with dissolvable material. NOW add a magnetic KEY to the car, ADD a magnetic key SWITCH a little above the Dissovable material, and put a wire from the switch to the dissolvable material. So that when the car passes it dissolves and when you come back around you will go through that empty space.
Make sure to glue the loop to the floor and add support to it because it tends to fall sometimes if not made right.
I have one in one of my levels, works GOOD.