In fact, Iwuji -- who's also an officer in the U.S. Navy Reserve -- says racism in the sport is nothing new. He knows from personal experience.
"I'm currently racing in the NASCAR truck series, and we see racism. It happens here and there. We probably get messages a few times a year from fans who are just racist, they just don't like us because of our color."
Now, 32-year-old Iwuji says he wants NASCAR to focus on exposing the racists in the sport and eradicating them, so NASCAR can continue to grow with people from all walks of life.
"We have to unite in order to rise and overcome everything that's going on right now."