Red Bull team boss Christian Horner says reliability will be the 'number one challenge' when the new F1 season gets underway.
Drastic changes to F1's engine regulations are set to have a major impact on the year ahead, with Red Bull's rivals hoping that the move to 1.6 litre turbo-charged units will allow them to take the fight to the defending champions.
The new regulations will make pre-season testing, which kicks off later this month in Spain, more important than ever and Horner insisted that the first challenge would be get on top of any reliability problems with the new cars.
"As you know, Adrian Newey does not have a reputation for having a car ready ahead of time, so I am sure there will be several sleepless nights before the car is in running order," he told Turun Sanomat
. "Reliability is the number one challenge," said Horner, "but of course we also want a lot of performance from the car from the very start in Australia.
"It means the amount of work in front of us in phenomenal.”
Horner added that Red Bull couldn't afford to relax going into 2014, with the team boss insisting that things could change quickly when it comes to who is the team to beat.
“We did a good job in 2013 but it wasn't perfect, and that motivates us to improve on those areas in which we did not meet our targets,” he said. "That doesn't mean that we expect to win next season. We want to win, but the competition is very hard, and we know how quickly everything can change at the top in F1.
"Nothing can be taken for granted.”