What the F??

Is this crazy lawn ornament??? I drive by this house everyday on my way home from work and I just don't understand this crazy lawn thing. What is it supposed to be? A car? just some wacky white thingy to hold more grass and flowers? My photo isn't great - I took it with my iPhone while I was driving. I'll have to get a better shot when I'm stuck in traffic and have time to take a better pic.