Williams team principal James Vowles says he is surprised Red Bull and Mercedes both passed up the opportunity to sign Carlos Sainz, after the Spaniard agreed to join Williams from 2025 onwards.

Sainz has signed a multi-year contract to race for Williams when he leaves Ferrari at the end of this season to make way for Lewis Hamilton. Hamilton’s move was confirmed in early February and Mercedes has yet to finalize his replacement, while Red Bull has weathered ongoing uncertainty over Sergio Perez’s seat, leaving Vowles surprised that neither team attempted to secure Sainz’s services.

“I rate him as one of the top four drivers, if not at times the number two driver on the grid,” Vowles said. “Why wouldn’t you want that in your stable?