The 9-year-old greyhound’s owner Elaine Clark said she would probably need a Ferrari to catch her.
In a former life, Bonnie used to be called Sheza Rippa, and in greyhound racing circles, she was quite a star.
She won 58.6% of her races around the country, and some of them were "really big ones", Ms Clark said.
Now that Bonnie has retired, her passion for chasing the odd cat here and there is fading with age, and it is the only hint that she ever used to be a racing dog.
"If she saw a cat, she’d be gone and there’s not point in running after a greyhound — you’re not going to catch them.
"I got her two years ago. I’ve always had a passion for greyhounds.
"They’re just lovely-natured and usually quite placid, although Bonnie was quite active when I first got her because she wasn’t used to being out on leads around other experiences that they don’t get when they’re racing dogs.
"It took her a little while to calm down."
The only other hint that she used to be a racing star was that she refused to jump in the car when it was time to go out.
"She had to be picked up and placed in the car — bit of a princess, really.
"She’s Bonnie now, always by my side."
The duo were at the Kensington Oval yesterday with about 40 other greyhounds and their owners for the Great Global Greyhound Walk.
They are all part of the Dunedin Greyhound Group which meets once a month for gatherings and walks.
"It’s good for their social lives. Greyhounds love being with other greyhounds," Ms Clark said.
The Great Global Greyhound Walk is an annual dog-walking event that brings together greyhounds, lurchers and other sighthounds, to raise awareness of the breeds and show the public what wonderful pets they make.
Last year’s global event attracted a record-breaking 11,818 sighthounds to walks across 36 countries.
It was hoped this year’s event would break that record.