Red Bull Racing boss Christian Horner has admitted the new RB11 isn’t ready yet, despite the first test of the new season starting on Sunday.
The Tilbrook team suffered their worst season since 2008 last year, winning three races and coming third in the constructor’s championship.
But Red Bull are one of the few remaining teams not to announce an official launch date for their new title contender.
“Not yet,” said Horner, when asked if the car was ready.
“The car is flat out into car build at the moment.
“It’s probably the shortest production and assembly time in our previous 10 seasons.
“It’s unbelievable what the factory has turned around so far, but there’s still plenty of work to do before Sunday.”