Bonnie and Joel Sykes are all geared up for their September wedding, at the Alice Springs car festival Red CentreNATS.

It's been a long time coming for the happy couple, who have been together for 12 years and engaged for six. In that time, they've had two kids - Noah, 5, and Chloe, 9 months.

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In fact, Bonnie was so convinced they would never get married she legally changed her last name.

But then the chance to win a $15,000 wedding at the Red CentreNATS - an event supported by Canberra's Summernats - came up. And all Bonnie had to do to impress judges was to make a TikTok video that simply said: "12 years, 2 kids, 6 performance cars, hundreds of motorsport events and still hasn't married me?"

"We didn't have anything to lose," Bonnie says.

"We were happy with our situation but thought we may as well enter, see how we go and we were pretty successful and got through."

The big question is, however, what will the wedding car be?

"I have three cars at the moment and we're tossing up which one to take," Joel says.

"Hopefully it will be a new car and it will be semi-unveiled there. If it is, it will be a blown, injected HG Holden."

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