The car's laser-guidance system, installed in the windscreen, will spot vehicles in front that are too close or stopping suddenly.The CitySafety system, which kicks in at speeds of up to 32 kmph, has the potential to prevent half of all rear-end collisions, said Volvo.The laser sensor reacts to traffic in front that is either stationary or moving in the same direction. It scans up to six yards ahead and, sensing the difference in speed between it and a vehicle in front, it makes 50 calculations a second to determine the braking force needed to avoid crashing, the Daily Mail reported.
Just in case the driver fails to slow, the system brakes automatically and disables the accelerator.
The system will be standard in the XC60 car, priced from 25,000 pounds.
But Jonas Ekmark, of Volvo, maintained that CitySafety does not relieve the driver of the responsibility of maintaining a safe distance.