worst. >> the structure collapsed. we've got the restraints not doing a good job of controlling the motion of the occupant. >> reporter: the group says manufacturers have built cars to best absorb impact in the center. take a look, a more head-on impact on the left and an overlap crash on the right, the damage much worse in the overlap crash. >> as manufacturers redesign their cars they need to figure out ways to provide better protection for the people inside. >> reporter: the dodge dart, ford focus and hyundai elantra and cion ect passed the tad. the volkswagen beetle and nissan soul and others all performed poorly. even though half of the cars performed poorly they say it doesn't negate the overall