If the sight of this adorable, pint-sized race car driver doesn't put a smile on your face, then the special mission behind his hobby just might.
After Hunter Stewart's mother was diagnosed with breast cancer twice before he turned 10-years-old, he decided he wanted to use his passion for cars to help other moms fighting the disease. At just 13-years-old, he has founded his own non-profit organization, "Racing 2 Cure." The funds he raises go to every day needs of families dealing with cancer, such as after-school activities for kids, day care during treatments, house cleaning and transportation, among others.
Watch the video above to hear Hunter's amazing story.
"I think it's really neat that people look up to me," Hunter said about being a role model for other teens. "When you grow up, you never really think that people [are] look[ing] at you, because you always look up at other people."
And his advice on changing the world?
"I say, if you want to help other people, you do whatever you can and never give up," he said.
Are you inspired by Hunter? What are your favorite volunteer activities to do with your friends? Sound off in the comments below or tweet @huffpostteen.