Once when you earn 1m EUR in one day, what kind of garage should you buy ?

You should buy the garage like this one :

I know what you're thinking. It's nice, green, but this is not a garage. You're wrong. All you need to do is to click on the button on your automobile key. What will happen? After first second, nothing ...

... and then the automobile will start going downwards...

... and it will be safe in few seconds - until the next time you press the button on your key.