There were times when Johnson was arguably the fastest driver at the Mountain. He took three wins and ran his successful tin-top squad for years, but perhaps the most famous Johnson moment is one in which things didn't go so well.
"Things happen unexpectedly," says Johnson as he takes up the story of the 1980 event. "We were leading the race, and I was coming up to the Cutting and all of a sudden there was a rock on the road with a truck beside it. Unfortunately I hit the rock and wrecked the car.
"What happened from there was something that no-one could ever orchestrate. People started ringing [TV broadcaster] Channel 7 wanting to donate money to get us back into the track, because we'd put a huge effort in - it was a privateer team. And not only that, but from my perspective I'd stuck everything into it financially, including mortgaging my house.
"We ended up with enough money from what people donated to set us straight for the following year, and in 1981 we built a new car, won our first championship, and won Bathurst in the same year. So I certainly felt that I'd given something back to people who had faith in us."