All new cars could soon be fitted with special devices to automatically make them keep to the speed limit after new EU rules were provisionally agreed.
Intelligent speed assistance (ISA) is one of a raft of safety measures set to become mandatory in European vehicles after the plans were given approval by the European Commission.
Provisional political agreement was agreed on the proposals, which also include drowsiness and distraction monitoring, as well as lane-keeping assistance.
"Many of the new features already exist, in particular in high-end vehicles. Now we raise the safety level across the board, and pave the way for connected and automated mobility of the future," said European Commission (EC) commissioner Elżbieta Bieńkowska.
It is claimed the measures could help save more than 25,000 lives and avoid at least 140,000 serious injuries by 2038. The vast majority of these accidents are caused by human error. This will contribute to the goal of achieving zero fatalities or serious injuries on Europe's roads by 2050.