The European Commission said there were no concrete plans, however, insisting that the results of a stakeholder consultation into the issue had not yet been finalised.
Intelligent Speed Adaptation works using satellites, which communicate limits to cars automatically, or using cameras to read road signs, to automatically adjust the speed of the vehicle.
“Under the proposals new cars would be fitted with cameras that could read road speed limit signs and automatically apply the brakes when this is exceeded,” reads a report in the Sunday Telegraph from 1 September.
The Mail on Sunday said that UK transport minister Patrick McLoughlin had instructed his officials to block the move because they "violated motorists'" freedom.
Big brother behind the wheel
“Even Big Brother didn't try remote control of people's cars. I don't know whether this is an imminent threat or a gleam in some Commission official's eyes, but if or when it appears before the Transport Committee I can assure you Conservatives will be down on it like a ton of bricks,” said Conservative transport spokesperson Jacqueline Foster, MEP for the UK’s North-West.
"It is also an insult to personal freedom to say that bureaucrats in Brussels are effectively going to have their foot on your brake pedal. Britain has the best road safety record in Europe and we won't have it compromised by nonsense like this,” Foster concluded.
A spokeswoman for the European Commission said that the reports “may be referring to the stakeholders' consultation held in the framework of the study on speed limiters.”
Such automatic speed limiters are currently fitted to heavy goods vehicles and buses. The consultation will assess the effectiveness of the limits and consider extending the devices to cars and vans.
“There is no legislative proposal in preparation concerning Intelligent Speed Adaptation. This will have to wait until the study results are available, which will be some time before the end of the year,” said the Commission spokesperson.