COLAC West grandmother Delwyn Parker has become an online sensation.

More than 38,500 people have watched a YouTube video of Mrs Parker, in which Ford V8 Supercar driver Will Davison takes her through a hot lap of Phillip Island.

Mrs Parker said she was “petrified” as Davison reached speeds of up to 300 kilometres an hour.

“It was an emotion I’ve never felt before,” she said.

“You just shut your eyes and say, ‘get through it, get through it’.”

Mrs Parker won the hot lap and VIP access to the race thanks to her daughter Michelle Thomas, who entered a Mother’s Day competition to convert her mum to Supercars.

“Last year I won gardener of the year for the area; I’m going from one end to the other,” Mrs Parker said.

“I was totally petrified. I feel if I can do this, I reckon I could do bungee jumping,” she said.

“When it was over I just wanted to do it again. The adrenalin!”

Check out Colac’s Delwyn Parker in the passenger seat of a V8 supercar.

Ms Thomas said the competition required her to explain why she wanted to convert her mother.

“I’d go and turn the TV on and she’d say, ‘turn that off now’,” she said.

“She never understood why I loved cars and the sound and the rumble.

“So I thought, what a perfect opportunity to be able to show Mum what the adrenalin rush is, what it’s all about.”

Ms Thomas said she had succeeded in converting her mother to V8s, but the competition had unintentionally backfired.

“Dad was always a Holden man, I followed it since I was about eight years old,” she said.

“The weekend was a Ford kind of a weekend – she’s now the odd one in the family but a little bit of family rivalry never goes astray.

“It was a great weekend and her grandchildren are very proud of her for stepping up to the plate and having a go at it.

“It’s united the family, I think.”