In an effort to prevent drivers from speeding, BMW has created a new video camera based system that can read oncoming speed limit signs well before they’re in view of the driver. The device then conveys the information to the driver via a heads up display.

The video camera, which is mounted behind the rear-view mirror, is capable of reading signs up to 164ft away and works in conjunction with the car’s sat-nav system. This new safety feature plus BMW’s lane departure warning system will be available as an option on selected models starting from next year.