Jasmine Bussier was returning home with four friends from an all-ages show, when a green Dodge Intrepid collided with her Hyundai Accent at the intersection of Bowen and East Wellington roads.
The force of the impact pushed the two cars more than 60 metres down the road into some trees, seriously injuring Bussier and her friends, all teenagers.
Bussier has since been transported to Victoria General Hospital, where she remains in an induced coma due to the severity of her injuries.
Friends at her side told CBC News her pelvis is broken and she has internal bleeding from her kidney, lungs and brain.
Bussier's friends suffered broken bones and concussions in the crash. Two have been released from hospital, while two others remain at Nanaimo General Hospital with non life-threatening injuries.
The condition of the suspect drunk driver, a 21-year-old Ontario man, is not known.
Police plan to recommend five separate charges of impaired driving causing bodily harm against him.