Coulthard: Williams' FW48 upgrade must deliver or 'heads will roll'

David Coulthard has warned that "heads will roll" at Williams if the team's heavily revised FW48 doesn't deliver an immediate step forward at the Azerbaijan Grand Prix. The former F1 driver expects the upgrade—called an almost B-spec car by James Vowles—to bring a notable gain, but the pressure is mounting.

Why it matters:

Williams sits ninth in the constructors' championship with just 11 points, hampered by an overweight car all season. This upgrade is crucial not only for the current campaign but also for setting the technical direction into next year.

The details:

• Coulthard told the Up To Speed podcast that Williams team members expect the car to finally be at the weight limit.
• He said 10kg of excess weight costs three to four tenths per lap, so shedding that alone should bring a meaningful gain.
• He likened the potential step to Aston Martin's B-spec car, which brought a clear improvement.
• The package also includes aero tweaks aligned with 2027 regulation changes, particularly around the front of the floor.
• In Friday practice, Sainz and Albon were 12th and 13th in FP1, then 17th and 16th in FP2, leaving the true pace unclear.

What's next:

The Azerbaijan Grand Prix is on Saturday at 3pm local time. If the FW48 delivers, Williams could start climbing the midfield. If not, Coulthard's warning suggests senior figures could pay the price.