Williams sign test agreement

Williams has signed up to the 2006 draft agreement to limit in-season testing, we can reveal.

It was reported on Tuesday that a voluntary agreement, likely to mirror the 30-day restriction this year, would probably not be enacted unless Ferrari also came to the party.

Unfettered Ferrari tested on 79 days during the '05 season.

A spokesman at Grove, Williams' HQ in rural Oxfordshire, said it is 'envisaged that all ten teams will sign' the 2006 draft agreement.

Like Ferrari, Williams – Michelin clad until now – will wear Bridgestone tires next year.