James Courtney’s Team Sydney Holden has undergone an overnight change of livery, with the familiar colours of Boost Mobile returning to the sport.

The 2010 series champion’s car had been destined to run a Coca-Cola livery; the iconic soft drink brand will still feature on the sister entry of Chris Pither.

Courtney played a pivotal role in bringing the full-season deal together on the eve of the Superloop Adelaide 500, having been affiliated with Boost in the recent past.

Boost Mobile founder Peter Adderton said loyalty to Courtney was a key part of their decision to return to Supercars, having exited at the end of a 2019 season in which they were title sponsors for Garry Rogers Motorsport.

“Boost has a history of being loyal to our ambassadors, like Chad Reed and many other ambassadors, who we have supported for close to 20 years,” Adderton explained.

“And James has been loyal to us, proudly supporting the Boost brand for many years.

“When James called and asked us to be part of his 2020 campaign, he knew our concerns about fighting for parity, but he still asked, and we agreed.

“Sometimes you need to look at the individual and put aside your differences and support people/ambassadors who have supported you.

“James supported our Boost brand over many, many years to help us get it to what it is today. We have a history of loyalty and continue to see value in James as an ambassador.”

Boost Mobile general manager and chief marketing manager Jason Haynes is looking forward to again working with the 39-year-old, who joined the Team Sydney project in the summer after nine seasons at Walkinshaw Andretti United.

“We love being part of the show and look forward to being trackside with the fans in 2020 cheering James on,” Haynes said.

“One thing is for sure it will never be boring; we will make sure of that.”

Team Sydney managing director Jonathon Webb welcomed Boost Mobile to the team, which will complete its Gold Coast to Sydney relocation next week.

“Boost Mobile are no stranger to the Supercars paddock. They have long been passionate and loyal race supporters,” said Webb.

“Team SYDNEY will stand out on track with JC in his Boost Mobile Racing Supercar, and we are dedicated to delivering results for those who join us on this journey."

The new-look #19 Commodore will make its track debut in Practice 1 of the Superloop Adelaide 500 from 3:55pm today.