Ross Brawn thinks that Mercedes will still be the team to beat in Formula One next week.
With new regulations coming into force next year, many think that Mercedes could be challenged by Red Bull or Ferrari
But Brawn, who sold the former-Brawn GP team to Mercedes at the end of 2009, thinks the Silver Arrows will continue to be a force next year.
"Mercedes will have been pulling resource off this year's programme onto next year very early, once they saw where they were with the car," he told the FIA's in-house magazine Auto.
"If I was there, and I'm sure they've carried on a similar philosophy, I'd be saying 'Right, we've got a strong car, we can only beat ourselves, let's get everyone onto next year's programme'. I don't know how many other teams could do that."
Although the 2017 regulations are more aero-focussed and Mercedes' success has been attributed to their engine, Brawn thinks that Mercedes' current success means they'll still be the team to beat.
"Success breeds success," Brawn insisted. "Mercedes will be strong next year, despite the greater emphasis on chassis."
Bahrain International Circuit - Winter testing