There are five people in the car, two upfront, three in the back, with my sole survivor sitting between the two in the back, or sitting against one of the doors. I want four of the people to die in the crash, with the survivor being injured but not seriously, and am not sure how feasible this is. The survivor is an athletic, fit man in his late twenties/early thirties, who was drugged at time. I've researched that bit to see if it would help in his survival but one site says the research data doesn't indicate a significantly lesser probability of injury due to the body being more relaxed.
Victims' car will be a newer model sedan and the other car involved is a delivery truck, about the size of an UPS delivery truck. Early morning hours. Driver wearing a seat belt and maybe the front passenger, with the people in the back not wearing seat belts. Just not sure what would be the best impact to kill four out of five passengers.
I've Googled: writing a car crash, surviving a car crash, driver side impact car crash, people on drugs in car accident.
EDIT: Thanks for alt the comments! I should have also stated that the accident is not going to be really described in the story, the story will start off with the aftermath of it and the police investigating the accident. I was stuck trying to figure out how to present the accident to the investigating detective, like how the impact occurred and how likely it was to have one out of five survivors.