The passenger compartment remained stable in the frontal test, the windscreen pillar moving rearward by only 3mm. The knees and femurs of both the driver and passenger were well protected. Subaru showed that occupants of different sizes, or those sat in different positions, would be similarly well protected. High rib deflections indicated poor protection of the chest in the side pole test. Inspection of the car after the side barrier impact revealed that the rear door on the struck side was prevented from opening fully only by the secondary latch, for which the car was penalised. The protection offered against whiplash injury was rated as marginal.
Based on dummy readings alone, the Impreza scored maximum points for protection of the 3 year old in the front and side impacts. The passenger airbag cannot be disabled so a rearward facing child restraint should not be used in that seating position. The label warning of the dangers of doing so was not available in the languages of all the countries in which the car is sold and was not rewarded. The presence of ISOFIX anchorages in the rear outboard seats was not clearly marked.
The bumper scored maximum points for the protection offered to pedestrian's legs. The bonnet offered good protection in most areas likely to be hit by a child's head.
As a result of Euro NCAP's new rating scheme, Subaru have made electronic stability control more widely available. From the middle of February 2009, Subaru Vehicle Dynamics Control is available as standard on most Impreza variants and as an option on all others throughout Europe. Consumers should be aware that some cars in stock may not be equipped with Vehicle Dynamics Control and Euro NCAP encourages them to choose those which are. The car has a seatbelt reminder system for the driver's seat.