You could add it as a fin, like BMW antennas. LIDAR is expensive and mechanically unreliable: you can't steer light electrically, so you need either a spinning

You could add it as a fin, like BMW antennas. LIDAR is expensive and mechanically unreliable: you can't steer light electrically, so you need either a spinning motor or a phased array (under research). And isn't really needed after optical, radar and sonar.