Korean cars and safety have not always been two concepts that fit well into a single sentence. You only have to look at the Korean-sourced Holden Barina crash test video to see that. To set things straight, Hyundai's new global car, the Genesis sedan, has recently undergone frontal and side crash tests:
There is virtually no intrusion into the cabin and the Genesis comes out in reasonable shape - a testament to Hyundai's commitment to safety.
Hyundai Genesis crash test video