Gerhard Berger believes that Red Bull Racing could be unstoppable again this coming season.

Berger, who raced at the pinnacle of the sport between 1984-1997, competing with the likes of Ferrari, McLaren and Benetton and winning twelve grand's prix, told Germany's Auto Motor Und Sport that the 'genius' of chief technical officer Adrian Newey will keep the Milton Keynes-based outfit ahead of the likes of Ferrari, McLaren and Mercedes - although he added he would rather it was the driver that made the difference.

"I do not see a chance for the others, unless the regulations change dramatically," Berger stated. "Adrian Newey is quite simply in the area of aerodynamics a genius. It would however be much, much better if driving genius would play the crucial role."

Meanwhile, Berger revealed there is now no chance he will return to the sport as a team owner, as it is just too expensive.

"With the way F1 is today, there is not the opportunity. I cannot afford it. The sport has become too expensive," he continued.

"You just can't find the money that you need in order to do a good job on the open market," added the ex-joint BMW motorsport director and former part-owner of Toro Rosso.