I worked on the radar systems personally and we tested them with the Lidar hardware that Google uses. When the systems are raised they become more difficult to

I worked on the radar systems personally and we tested them with the Lidar hardware that Google uses. When the systems are raised they become more difficult to engineer (Caterpillar uses similar sensors on its large trucks, which are raised). Ultimately we solve this with more capable radar hardware in the bumper, not multiple mounting points, though Volvo's innovation in this area is significant and commendable.