Adult occupant The passenger compartment of the 508 remained stable in the frontal impact. Dummy readings indicated good protection of the knees and femurs of the driver and passenger. Peugeot was able to show that a similar level of protection would be offered to occupants of different sizes and to those sat in different positions. Dummy readings of the ribs indicated adequate chest protection in the side barrier test, with good protection of the other critical body areas. In the more severe side pole test, chest protection was marginal. The seat and head restraint offered good protection against whiplash injuries in a rear-end impact. Child occupant Based on dummy readings in the dynamic tests, the 508 was awarded maximum points for its protection of the 3 year infant. The front passenger airbag can be disabled to allow a rearward facing child restraint to be used in that seating position. The switch is clearly labelled and unambiguous information is provided to the driver regarding the status of the airbag. The system was rewarded by Euro NCAP. Permanently attached labels clearly warn of the danger of using a rearward facing child seat in that position without first disabling the airbag.