Cadillac's first Formula 1 chassis will be designated MAC-26, as a tribute to its ambassador, Mario Andretti.
The 1978 world champion Andretti was a key driver of Cadillac's long-running bid to join the F1 grid as all 11th team, along with his son Michael, who initially spearheaded the project.
Michael was shuffled out of the entry that F1 eventually approved, as was the Andretti name, but Mario has remained an ambassador for the team.
Now, ahead of Mario's 86th birthday on February 28, Cadillac has revealed its first F1 chassis will pay tribute to him.
The MAC-26 - or Mario Andretti Cadillac 26 - honours "Andretti and his lasting influence on the team's formation and competitive ambition".
Andretti called it the "ultimate compliment that Cadillac sees those years as meaningful and worthy of recording with this honour".
"I cherish the opportunity that it gives me to have a lasting bond with F1 and am genuinely appreciative of everyone who continues to acknowledge my part in racing history."
Cadillac team principal Graeme Lowdon called Andretti "an incredible man with a gentle heart".
Lowdon added: "At the start of my own journey with the team, he asked me not to let him down - I hope that he will be proud to see the Cadillac Formula 1 car bearing his name finally take to the grid."
