The European body responsible for testing new cars has demanded a pick-up truck be recalled after it received one of the worst ever crash safety scores.
Euro NCap said the Nissan Navara's poor design made deaths and serious injuries more likely in an accident.
The tests showed its airbags opened too slowly and seatbelts did not provide enough protection during a collision.
But Nissan said the airbag problem was limited to 2008 models and invited owners to have settings changed.
The Nissan Navara scored just one star out of a possible five in the Euro NCAP test. The Isuzu D-Max pick-up truck also scored poorly, gaining only two stars.
BBC transport correspondent Tom Symonds said the Navara was marketed as a "rough and tough" off-road vehicle, which has become increasingly popular as a recreational motor.
He said the tests also found that the "body shell wasn't strong enough and the foot well deformed on impact putting the driver at risk of injuries from the foot pedals".
Euro Ncao is an independent body that crash tests cars on sale in Europe, and Nissan has asked it to publish test results for the modified Navara.
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