After setting up Team Lotus two years ago in a sport regarded as a drain on resources, opting to then plough even more of his fortune into football this summer appeared brave at best.
But Fernandes pursued and realised his dream of owning a football club by purchasing the majority shareholding stake in QPR from F1 supremo Bernie Ecclestone and former Renault team principal Flavio Briatore.
The Malaysian entrepreneur, who has made his fortune from budget airline AirAsia, has no doubts Team Lotus and QPR can follow in the footsteps of that particular business and make money.
"I started an airline with 25 cents, which is now worth almost four billion dollars," Fernandes said.
"So it's about taking a business, like the F1 team or football club, making it cash positive and running it as a business.
"There are some guys in Formula One who run their team for their car business, and we are developing it as a car business as well with the promotion of Caterham.
"So it is a business, not the black hole of Calcutta. The football team can also be a business, and should be a business."
Given the plethora of sponsors on board with Team Lotus, turning over a profit may not be too difficult, but still daunting.
Attempting it with QPR may be a different proposition altogether given the drain a football club can prove, in particular one in the Barclays Premier League and the hefty wage bill that comes with it.
But a defiant Fernandes added: "I'm not saying there is anything special about me, but not many people have made an airline as profitable as I have.
"We think we have been able to build and run businesses properly, and I'm fairly confident.
"Toyota spent God knows how many millions, and I'm sure within two years we'll be as good as Toyota having spent maybe a tenth of what they did.
"The days of free spending are coming to an end anyway. Everyone is looking at costs, costs, costs, so the timing is good.
"And with football, some of the players we've bought would have cost a lot more three years ago.
"There is some sensibility coming into football as well, even though I know we have the likes of Manchester City and Chelsea."
In F1, Fernandes will this weekend turn his attentions to one of the highlights of the calendar with the night race in Singapore.
Lotus have yet to break their points duck in the sport after 31 races, an unwanted statistic Fernandes would dearly love to see eradicated soon.
"We are working very hard behind the scenes to put all the pieces in place for the next phase of our growth," said Fernandes.
"But the team is working equally hard under intense pressure at the races and back at the factory and it makes me very proud to see how far they have already come.
"The icing on the cake now would be a point. Perhaps we can record our first points finish this year. That really would be daring to dream."