Sergio Perez said Formula 1 drivers are "not comfortable" with the new rule imposed by the FIA banning them from making unsanctioned protests and political points.
The sport's governing body has changed the wording of the regulations meaning anyone who wants to make such a point on a race weekend must seek prior approval. But the move has been widely criticised as an attempt to curb the drivers' freedom of speech and right to protest.
The FIA has also been accused of directly targeting Lewis Hamilton, who has regularly used his platform to highlight social injustices such as racism and homophobia. Perez says it is not a popular move among drivers and believes it may prove difficult to police.
