Complex sentence: In Insurance Institute for Highway Safety (IIHS) tests the HHR received a "Good" overall score in the frontal offset crash test, and an "Acceptable" score in side impacts on models equipped with side curtain airbags.
Split into simpler sentences: In Insurance Institute for Highway Safety (IIHS) tests the HHR received a "Good" overall score in the frontal offset crash test. And an "Acceptable" score in side impacts on models equipped with side curtain airbags.