results. >> reporter: the nissan morano earned a good rating from the insurance institute of highway safety. the morano protected the best, out of the seven suvs tested in its latest round of crash simulations. >> the air bags did what they're supposed to do to keep out of harm's way. >> reporter: the ford flex and the jeep wrangler four door also received high marks for safety. >> automakers are making changes to provide better protections in these kinds of crashes. >> reporter: the institute tested what happens when the vehicle's front corner collided with another car or object. analysts say it simulates the most common type of crash. >> when you look around in junk yards that have been in crashes, you rarely see the kind of damage that occurs from a flat wall. >> reporter: but not every vehicle held up well. the dodge durango, jeep cherokee and hyundai santa fe got worse