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.

Either you focus, or you hit something really hard.

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

I want to race as long as I'm having fun, it's competitive and healthy, and who knows when that, you know, date comes when that's not happening anymore.

I don't feel like I've really changed. Maybe I have let people see more of me than in the past.

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.

I want to force the other drivers to find a way past me.