Holden's small hatchback, the Barina Spark, has taken the 2014 Top Safety Pick Award for minicars in the United States.
The Insurance Institute for Highway Safety has chosen the Spark as the only minicar out of 11 to achieve an acceptable rating in small overlap front crash tests.
The small overlap test introduced in 2012 replicates what happens when the front corner of a vehicle collides with another one, or an object such as a tree.
In the test, 25 per cent of the front end on the driver's side strikes a barrier at about 60km/h.
Institute senior vice-president Joe Nolan said that when a vehicle's structure did not hold up, injury risk was high - collapsing structures could knock frontal airbags and seats out of position.