Cool game, thanks for this! I've been wanting to have a top-down realistic car parking simulator to help me understand how to better park my car in tight situations in real life, and this is great ;)
It'd be awesome if there would be a parallel parking mode too, and perhaps some settings to tweak how much space there is between bays in the car park - I'd gladly donate some money for these features :)
Also, it currently allows one to just reverse out the car park, I feel this is cheating a bit :P