"There are two schools of thought on how to improve performance in this test. The first is to extend the bumper and crumple zones outward and design the suspension to absorb loads and then break away to the outside of the car. Combined with a cabin structure that's strengthened to resist any intrusion or bending, this re-creates the traditional crumple zone concept. The other idea is to deflect the crash forces away from the car by using the frame and suspension as a wedge, avoiding absorption of much of that kinetic energy. Honda's Accord and Civic use the former method, whereas the Jeep Wrangler uses the latter. Which will be the preferred method across the industry remains to be seen."