I thought its cameras PLUS neural network AI….not cameras alone.One can not have level 3 driving assistance if this car can not see in fog, snow, rain or head on bright sun light. For example, you are driving down highway 5 in Calif. And you come around a corner and suddenly hit heavy Tully fog. No place to pull over. What does the car do, suddenly stop in the road. How about a sudden heavy rain storm in the Midwest? Or a sudden snow storm with heavy fog in the northeast. The car needs the radar to 'see' in these situations. At least till the driver has a chance to stop safely.