So, you only have single point of failure (parking brake) holding your car back from rolling down the road? No, leave it in gear when you park. I mean, why woul

So, you only have single point of failure (parking brake) holding your car back from rolling down the road? No, leave it in gear when you park. I mean, why wouldn't you leave it in gear? If you think you're saving wear on something, you're probably wrong.