Speeding will become virtually impossible from 2022 under tough EU safety rules which the UK has vowed to adopt despite Brexit.
New cars will be unable to break the speed limit as mandatory technology will see vehicles monitor road signs and cap your top speed.
The Intelligent Speed Assistance (ISA) limiters are part of a package of increased safety regulations branded “the biggest leap forward since the seat belt” agreed by the EU.
Experts say the changes could save 1300 lives every year.
They also include requirements for Automated Emergency Braking, which can detect pedestrians and cyclists, and Lane Keeping Assitance to stop drivers drifting.
Lorries will have anti-drowsiness alarms fitted to wake drivers who fall asleep behind the wheel.
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The rule changes will come into force in the UK because British regulator the Vehicle Certification Agency has said it will still mirror the EU rules in order to make it easier for car producers.
The rules have been agreed by negotiations between the European Council, made up of the 28 member governments, the European Parliament and the European Commission.
They will now be formally approved by the European Parliament and Council before being worked into domestic law by all the member states.
Road safety campaigners welcomed the news.
Joshua Harris, director of campaigns for Brake, said: “These lifesaving measures come at a vital time, with road safety in a concerning period of stagnation with more than 70 people still being killed or
seriously injured on British roads every day.”
