RACING: McLaren boss Zak Brown exits Australia's Supercars

SYDNEY - United Autosports and Andretti Autosport first entered the series in 2017, forming Walkinshaw Andretti United. The team has since enjoyed major success, securing this year’s drivers’ championship with Chaz Mostert two weeks ago and winning the prestigious Bathurst 1000 in 2021.

Brown said the decision to withdraw was not made lightly, noting that United Autosports’ growing commitments in the World Endurance Championship and other international series required full attention.

“It was an incredibly difficult decision to step away… but with our WEC program and other racing commitments growing rapidly, the time was right to put our complete focus and energy into that,” Brown said in a statement.

He added that his time in Supercars had been personally rewarding. “I have loved every moment with the entire team and the drivers. Winning the championship in our final event together feels like the perfect ending, and the Bathurst 1000 win is something I will never forget.”

The team will continue next season under the name Walkinshaw TWG Racing. Brown emphasized that although he is stepping back from day-to-day involvement, he will continue to support the squad—especially during the Melbourne Supersprint, held alongside the Australian Formula One Grand Prix at Albert Park in March.

“I might not be involved day-to-day anymore, but that won’t stop me from watching and cheering on from afar—and from the pit wall in Melbourne next year,” he said. “I have no doubt there are great things ahead.” -Nick Mulvenney, editing by Peter Rutherford/Reuters