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.

As fast as we're going these days, especially because of the aerodynamics, we're all concerned about abusing tires. It's so fast that you're afraid of what you're going to do to the tires.

I just feel rejuvenated in such a big way because of these race cars I get to drive.

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.

When you're in a race car, you're going through so many different emotions throughout that race.

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.

If somebody tells me, 'You have to pass that car right there,' I guarantee you I'm going to step up the aggressiveness to a whole other level and that may mean beating and banging. But until it calls for that moment, I'm not expecting to go out there and just beat and bang for no reason.