The iihs test methodology is shaky at best. First, they design a side test with an overly high impact point and an overly short driver. They purposely design the test to need side air bags to do well, then refuse to test a car with them if they are optional.
The rear test is a complete joke. They put a set on a sled, completely negating the ability of the car itself to disperse crash forces.
They downgraded a great frontal performance because you might break your ankle... whoopee.
