WATCH: Serena Williams stars in MINI's Super Bowl 50 ad

The advertisement’s theme is “Defy Labels,” which the Australian Open finalist does via the words she intones. (AP)

“This … is a chick car.”

So says Serena Williams, as she kicks off MINI’s new TV commercial for its Clubman vehicle. The ad will appear during Super Bowl 50 on Feb. 7. She’s joined in the spot by recently retired soccer star Abby Wambach.