"As fans of the game of basketball, we were honored to learn that one of today's most influential athletes and tastemakers recognized something different was going on at Kia and wanted to check out our new flagship sedan," Tim Chaney, VP of Kia Motors America marketing communications, said in the statement.
Mr. James, 29, approached Kia after a firsthand experience with the sedan, and then he took on the role of luxury brand ambassador, the statement said.
In August, before Mr. James officially represented Kia, he shared photos of his car and posted, "Rolling around in my K900. Love this car!" online, the statement said.
"I was a Kia K900 driver and fan before we decided to become partners, so I'm really excited to be Kia's first-ever luxury ambassador," Mr. James said in the statement. "Kia and the K900 are out to challenge conventional wisdom and show people how to think differently, and I can relate to that."
Kia's other ambassadors include NBA all-star Blake Griffin, tennis pro Rafael Nadal and U.S. Women's Open golf champion Michelle Wie.
--Hannah Lutz is a writer for Automotive News.