The proposal, which comes as the government finalises its new Road Safety Plan, would see cars subject to the technology for the first time in NSW.

Point-to-point cameras average the speed of a vehicle over an extended distance and the technology is currently only used in NSW for heavy vehicles.

Several other states have installed the cameras to target cars and the measure has the support of many experts in the medical and road safety fields.

However, a number of Nationals MPs told Fairfax Media they would oppose the extension into regional areas.

"I can't see the party ever moving on that," said one MP.

Former roads minister Duncan Gay said limiting the cameras' use was "an election commitment" and one that would not change.

A spokesman for Roads Minister Melinda Pavey declined to say if she endorsed use of the cameras but said the government was considering a final version of its Road Safety Plan, which would be released in due course.

Geoff Crouch, the Australian Trucking Association chairman, supports the investigation into whether point-to-point cameras should be implemented for speeding cars as well as heavy vehicles across Australia. 

Mr Crouch said the association’s support would remain “as long as they were there for a safety initiative and supported by a continued high profile police highway patrol”. 

Driving instructor with Roadcraft Driving Services, Paul Dawson, is also on board with the implementation of the point-to-point cameras as they act as a “longer deterrent”. 

He said when driving along roads with this technology, “you cannot speed at any time because it is measured in time over distance”. 

Mr Dawson said residents shouldn’t be concerned if they are implemented because “if you don’t speed, you won’t get caught”. 

Data released by Transport for NSW shows that although speed-related fatalities decreased between 2009 and 2014, they have increased in recent years. 

Earlier this year, the NSW Deputy Commissioner Catherine Burn announced that double the number of road deaths in NSW occurred over the most recent holiday period compared to last year.

According to the NRMA, regional NSW has a higher proportion of road fatalities than metro NSW. In 2011-15, 67.1 per cent of fatalities occurred in regional NSW.

The NRMA also estimates that the average cost of a life lost on a NSW road was $7.21 million from 2011-2015.