It is a sculpture.
Btw: The image has been posted on Google Sightseeing 2 month ago: http://googlesightseeing.com/2007/02/12/extreme-parking/

There is a better one: http://googlesightseeing.com/2007/03/12/car-tipping/

Google Earth Blog covered the story of the car on the side of a building back in early February. It was actually first posted (I think) by someone at the Google Earth Community. Here's the story:

http://www.gearthblog.com/blog/archives/2007/02/car_parked_on_side_o.html

Error? This is joke, right? I mean look at that, this obviously is intentional.

Not an error, this is Art :-)

hehehe! that was funny!