Williams has announced it will miss the the first day of testing Barcelona after already cancelling a shakdown of its 2019 car.
It comes after a fairly poor 2018 campaign which saw the team score only 7 points and finished last in the construtors (excluding the Force India reset).
“Unfortunately, we have had to delay the start of our pre-season Barcelona test to Tuesday morning,” said deputy team principal Claire Williams.
“We have had an incredibly busy winter at Grove getting the FW42 prepared for the season ahead and, despite everyone’s best efforts, we need some more time before it will be ready to run.
“Our absolute priority is to always ensure we bring a car to the track that is the best that it can be and sometimes that takes longer than you’d anticipate or like. It’s clearly not ideal, but equally, it’s not the end of the world.
“We will obviously have our work cut out to recover the time lost but we still have seven days of testing left and we will be maximising that time to prepare the car for the first race.”
Pre-season tesing starts in Barcelona on Monday and stops after Thursday before resuming the week after over the same period.