Councillor Terry Molloy reflected the views of most councillors when he said they were simply giving some clarity to the situation around the policy.
Councillor Bill Grainger, who abstained from voting, said candidates would be mad not to take advantage and plaster their cars with elections signs well before September 14.
The other councillor to abstain, Larry Baldock, referred to the rules forbidding advertising signs on private property. "A motor vehicle is private property, surely you cannot display signs on motor vehicles."
The only councillor left voting against the move was Tony Christiansen who warned that if the council did not put a line in the sand on signs it would carry on being a total shambles.
"Forget about it being a car, this is election advertising. It is pretty naive to say it isn't."
Mr Poole said the council should agree to exclude signs on vehicles.
It was a new policy and what had emerged were issues around election hoardings on vehicles that were not parked up. He highlighted the local Members of Parliament and the election candidate whose cars carried permanent signs.
Councillor David Stewart said he could see both sides of the argument, saying he was concerned where candidates flouted the rules to get one up on their competitors.