Do you drive around in a 1 litre CC car? Or do you buy a car with a bigger engine?<p>In both cases, when was the last time you drove it at its maximum speed all the time? Or ensured that you were using maximum torque at all times and always sitting in the maximum power band for the engine?<p>If you find that you haven&#x27;t done these things, you probably should ask yourself why you have a car, right? After all, you&#x27;re never going to drive the full speed of the car, so why have the car in the first place?