Teams were told that the use of pit boards
for such messages was also banned.
Bizarrely, Hamilton bemoaned an unusual occurrence in which the numbers on the pit boards
that provide drivers with information as to their position and laps remaining, fell on him during the race.
"There was no need to come across on me like that; inside the car I felt like I was scraping along the wall - all I could see were people's pit boards
"There's never a last lap flag at the North West and it's hard to see pit boards
near the finish.
'It's unfortunate for Carlos but when we saw our team's pit boards
telling us Carlos had stopped, it took the pressure away and I could ease off,' said McRae.
McRae stormed ahead in the Acropolis Rally yesterday but Burns claimed he was distracted by the Formula One-style pit boards
being used to advise the Ford Focus driver of his times.