FilterCarByBrandApproach3.java

// new interface
public interface CarChecker {
  boolean check(Car car);
}

...

//business logic
public static List<Car> filterCars(List<Car> cars, CarChecker carChecker) {
  ArrayList<Car> filteredCars = new ArrayList<Car>();
  for (Car car : cars) {
    if (carChecker.check(car)) {
      filteredCars.add(car);
    }
  }
  return filteredCars;
}

...

// from your program
List<Car> filter1 = filterCars(input, new BrandCarChecker());
List<Car> filter2 = filterCars(input, new BrandAndColorCarChecker());