Help on operator overloading

I'm trying to make my own text based racing sim
but when I try to display the cars details I get an error.

I need to overload the operator << can someone help with that?
I tried several things but it just won't work :(

this is the error:
error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'void' (or there is no acceptable conversion)

Code:

---

void Car::details()
{
        int damage = m_Damage;
        int gas = m_Gas;
        int speed = m_Speed;
        int engine = m_Engine;

        cout << "Car details: \n";
        cout << "Max Speed: " << speed << endl;
        cout << "Gas Level: " << gas << endl;
        cout << "Damage Level: " << damage << endl;
        cout << "Engine Power: " << engine << endl;
}


int main()
{
        Car myCar;

        cout << myCar.details(); // this gives the problem

        return 0;
}

---

Code:

---

void Car::details()

---

It's void!!!!!
Try:

Code:

---

int main()
{
        Car myCar;

        myCar.details(); // ???

        return 0;
}

---

thanks that was the problem :)

a bit of a stupid fault :P