Jenson Button believes it will be 'impossible' to police Formula One's latest clampdown on team radio transmissions.
The new ruling, which comes into force at this week's season-opening Australian Grand Prix, is designed to place more emphasis on the driver, rather than the team, and thus provide greater unpredictability during the races.
But Button, entering the 17th season of his world championship-winning career, has expressed his doubts over the new rules.
"I remember the days when we had no information about what was going on so I am looking forward to it, and it definitely will add something," said Button.
"It is just that policing it will be pretty much impossible as they are not going to be able to listen to every single radio message.
"Hopefully they can listen to as much as possible, to make it as fair as possible."
Button, 36, looked set to call time on his career at the end of last season before performing a dramatic u-turn by committing to the final year of his two-season deal with McLaren.
The 2009 world champion scored a paltry 16 points last season as McLaren, and their renewed relationship with Honda, struggled with reliability and performance.
While McLaren have shown signs of improvement over the winter, Button believes the British team, who last won a race more than three years ago, will not be endangering the top step of the podium in 2016.
"You can safely say that we wont be winning the grand prix," said Button when asked where McLaren stands ahead of the curtain raiser in Melbourne.
"We want to see improvement and build on what we have from race one, and seeing more of an improvement than we saw throughout last year.
"We did improve but it was not enough. Reliability is much better but there is still work needed with outright power and overall downforce."
Button will once more be partnered by Fernando Alonso, but w hile McLaren's demise shows few signs of radical improvement, Ferrari - the Spaniard's former team - are expected to provide the sternest test to Lewis Hamilton and Mercedes this year.
And Alonso, the double world champion, revealed for the first time he would regret leaving should either Sebastian Vettel or Kimi Raikkonen win the title.
"If they win the championship, then probably yes, because I had a contract last year and this year with them," Alonso said.
"So if they win the championship, probably I will find I could have had that opportunity as well if I was able to drive as good as the champion. So that will be the case, but this is a big if."