It's such a jolly day to be crushing some clones !
Your game makes me think of those parking/traffic jam flash games with their puzzle based gameplay. ^^
If I had one critic, it would be that the game's window is a bit too small.
(I just realized that you can just zoom-in the page to make the game bigger :facepalm:)
Btw I encountered a bug where I could collide the same car 2 times in the span of half a second (I assume you made a timer to prevent a car from colliding too often).
Outside these little issues, it's quite a nice idea with the different types of car behaviours. It really could see this as a full fledge game + a level editor of some kind.
The mix of planning, placement and timing is really great !
Good job and have a good one ! :)