Formula One champions Red Bull recognised on Saturday they were well behind rivals in pre-season testing but dismissed reports that Sebastian Vettel had "thrown a hissy fit" about the situation.
The Perth-born driver has yet to finish higher than seventh in a Formula One career that started in 2011 with now-defunct HRT but he now stands on the cusp of the big time with the dominant team of the last four years.
Lewis Hamilton walked away from a heavy crash after putting in the first laps of Formula One's new turbo era in testing with Mercedes on Tuesday.