The Team 18 star will reach an important career milestone with 600 races in Perth next week.
He becomes the third driver to compete in the 600 race, along with Craig Lounds and Garth Tander.
But the 41-year-old said he was more focused on winning his second Supercars title alongside the 2015 title than putting on the helmet.
Much of that motivation comes from a desire to succeed with team owner Charlie Schwercolt, who pulled Winterbottom away from his longtime home of Tickford Racing at the end of 2018.
“I won a championship, I won Bathurst, I achieved what I wanted to achieve in this sport. means nothing to him,” said Winterbottom. motorsport.com.
“I’m just so hungry to get a result. I’m not even focused on finish day. I’m just focused on putting this team and car in front and this is the best for us. It’s your chance.
“To be fair, if you start playing this sport – I hope this doesn’t sound arrogant – but there are a lot of opportunities. It’s not like I’m doing it.
“What I want to do is win races. That’s the only reason I do it, and the only reason most people do it.”
“Charlie hires me because he thinks I can win races. That’s the only reason I do it. There’s no end date, but I want to go away with a championship. Trying to – Worry after winning the championship [retirement] after that. “
Winterbottom has yet to finish on the podium since joining Team 18. His last top three came at his 2018 Perth.
But he is confident that the team’s “time is right” amid the general excitement for the new Gen3 era of supercars.
“I really love you with all my heart [the Gen3 cars] And I think it refreshed my opinion of the sport a bit,” he added.
“I think the other cars were too perfect. If they are good you are good and if they are bad you are bad.”
“And it was really about the power of development. If the car is bad, go downstairs and make some parts and make it better.
“I think they’re great and they’re fun to drive. They’re not easy, it’s certainly very hard to drive..funny because a lot of the people that are winning are theirs..who don’t like it I think it’s weird because I like whatever wins.
“I think it’s good and I think the car is fun to drive.
“Our time will come. I think we are definitely on our way up. [The Australian] The Grand Prix could have been a really good weekend, it didn’t, but it could have been a better weekend, so hopefully good things happen and I get to be a part of it. increase. “