A new EU driving rule will come into force for new cars made from today. It will now be mandatory for cars sold across the EU to be fitted with speed limiters.
These limiters use Intelligent Speed Assistance (ISA) technology which warns drivers to slow down by using a mix of vibrations or sounds if they go above the speed limit.
However, if the ISA warning is ignored it can automatically reduce engine power. Some speed limiters already exist on a wide range of cars, but they can be easily overridden by pressing hard on the accelerator.
