Williams boss James Vowles insists the team will be on track at the start of Formula 1's Bahrain test next month after the "incredibly painful" decision to skip the private Barcelona test.

With the FW48 program running late, the team opted to postpone its track debut to next month.

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Williams is on track to hit the track before the second pre-season test in Bahrain after its Barcelona absence.

Williams will be ready to test in Bahrain next month after taking the "incredibly painful" decision to miss this week's Formula One shakedown in Barcelona, team boss James Vowles said on Wednesday.

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