this does change the character of the level a bit. Now it matches the description. All the cars must enter the green to win.
Just realised the lose conditions also need fixing. hold tight for the next version.
original
https://box-stacker.artificialworlds.net/d/114-plinko-precision/10
win condition fixed
https://box-stacker.artificialworlds.net/d/318-plinko-precision-fixed
lose conditions fixed as well
https://box-stacker.artificialworlds.net/d/319-plinko-precision-fixed-2