The Insurance Institute for Highway Safety, or IIHS, has released results from its latest round of passenger-side small overlap front crash testing. Out of the three minivans tested, the Toyota Sienna performed the worst in the new trial.

According to the IIHS, Toyota made changes to the driver side in 2015 to improve protection but did not make the same changes to the passenger side, leaving it more vulnerable.

The IIHS put the Honda Odyssey, Chrysler Pacifica, and Toyota Sienna down the track to meet their fate. The Honda Odyssey performed the strongest out of the three, with the lowest amount of intrusion, followed by the Chrysler Pacifica; both earned the Top Safety Pick Award, missing out on the "+" after their headlights were only rated acceptable.

The Toyota Sienna came up short in the testing, suffering from significant intrusion into the cabin during the test, up to 20 inches in certain areas. The airbags performed as designed and expected, but the dashboard was pushed into the dummy's knees during the testing. The overall passenger-side rating for the Sienna was marginal, with the structure receiving a poor rating due to the intrusion.