//There are no classes in Rust
#[derive(Copy, Clone)]
struct Car {
    speed: i32
}

impl PartialEq for Car {
    fn eq(&self, other: &Self) -> bool {
        self.speed == other.speed
    }
}

let car1 = Car { speed: 50 };
let car2 = Car { speed: 90 };
let car3 = car1;

let equal1 = car1 == car2;
//equal1 is false

let equal2 = car1 == car3;
//equal2 is true

println!("equal1 is {equal1}");
println!("equal2 is {equal2}");