Lewis Hamilton has been told to "make it clear" he is prepared to leave Mercedes for another Formula 1 team if he wants his public criticism to have the desired effect.
In the wake of a poor performance at the Bahrain Grand Prix, Hamilton made his feelings very clear. Despite a message of support to staff over the radio after the race, he was much more critical when speaking to the BBC.
Speaking about the W14, which again looks to be less than competitive, he told the Chequered Flag podcast: "Last year, I told them the issues that are with the car. I've driven so many cars in my life, so I know what a car needs, I know what a car doesn't need.
