с циклом

import java.util.ArrayList;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
ArrayList<Car> cars=new ArrayList<>();
        Scanner in = new Scanner(System.in);
        System.out.print("инпут намбер оф карс ");
        int num = in.nextInt();
        for (int i=0; i<num; i++){
            System.out.print("название: ");
            String nAmE = in.next();
            System.out.print("спидность: ");
            int spEeD = in.nextInt();
            System.out.print("сайзность: ");
            int sIzE = in.nextInt();
            System.out.print("вейгхтность: ");
            int wEiGhT = in.nextInt();
            cars.add(new Car( nAmE, spEeD, sIzE, wEiGhT));
        }
       // cars.add(new Car("жигули", 200,3000,1200));
        //cars.add(new Car("mercedes", 250, 4500, 3000));
        System.out.println(totalSpeed(cars));
    }
    static int totalSpeed(ArrayList<Car> cars){
        int counter =0;
        for(int i= 0; i<2; i++){
            counter += cars.get(i).getSpeed();
        }
        return counter;
    }
}
class Car{
     private final String name;
     private final int speed;
     private final int size;
     private final int weight;
    public Car (String name, int speed, int size, int weight){
 this.speed=speed;
 this.size=size;
 this.weight=weight;
 this.name=name;
    }

    public int getSpeed() {
        return speed;
    }

    public int getSize() {
        return size;
    }

    public int getWeight() {
        return weight;
    }

}