Another odd accident scene

Ever since I started commuting across town due to my new job, I've seen quite a few impressive accidents. You may remember this one from a while back. This morning I passed another one.




It's a little bit tough to tell...but that's a minivan, completely flipped upside down on I-90 E.

Too bad they don't have video of the car actually flipping over...I'm curious how it's physically possible for a vehicle to end up like that.