Mercedes boss Toto Wolff says Ferrari and McLaren have made themselves "a laughing stock" for publicly stating their desire to sign Formula One's 'Concorde Agreement', which governs the sport's future.
The current commercial agreement, setting out the terms under which teams race and the share of revenues, expires at the end of 2020, and the new one will run to 2026. This week Ferrari and McLaren, F1's two most successful teams, said they plan to sign the new deal as soon as they can.
Ferrari's Mattia Binotto said: "As far as Ferrari, we are ready to sign.