Final answer:
In 'The Hate U Give', Chris and Starr went to prom in a police car-themed convertible, symbolizing unity in the context of the book's themes surrounding identity and police experiences.
Step-by-step explanation:
In the book The Hate U Give, instead of a limo, Chris and Starr decided to go to prom in Chris's police car-themed convertible. This unique choice reflects their characters and the themes of the book, where Starr grapples with her identity and experiences with police. The car, a representation of something that usually divides Starr's world, becomes a symbol of unity as she and Chris share this special evening together.