I suggest writing about the use of alcohol and careless driving.
Explanation:
Most 16 year olds are new to driving, so they are often more careful and less prone to getting into crashes. Older teens are more comfortable with driving, not to mention that most of them are legally allowed to purchase and consume alcoholic beverages. You could write about the difference that it makes between the ages.
How does the author connect the ideas in the text and how does the author increase awareness of the text after its publication. I'm not 100% sure but I think that's what it is