Either you focus, or you hit something really hard.

So much of my life is spent just focused on driving race cars.

You may be leading, then you might be at the back of the pack trying to work your way up. It's just a constant reminder not to give up, and to know that God, in my mind, is really in control.

You know, sometimes guys work with other guys because they're buddies off the track, not necessarily because they're buddies on the track. Sometimes you've got that going against you or for you.

I think fear is what keeps us from going over the edge. I mean, as a race car driver, I don't think what makes a good race car driver is a fearless person. I think it's somebody that is comfortable being behind the wheel of something that's somewhat out of control.

I thought long and hard about my future this past year and during the offseason, and I've decided 2015 will be the last time I compete for a championship.

There's no greater feeling than winning a race.