Answer:
The health risks include - fatal injuries by speeding and ejected due to the absence of seat belts.
Explanation:
As it is mentioned that car is an antique from the 1950s so there would be no legal obligation for not having and not wearing a seat belt. However, there is a risk present in speeding the car and it becomes riskier as there is no seat belt for the front seat or passenger seat.
Rewrite: It is found that there are 30 percent more likely to get ejected in a fatal crash die from their injuries so one should avoid driving fast especially if there is no sat belt and always seat belt if present.