Gearing Up For Level 4 Vehicles
More autonomous features are being added into high-end vehicles, but getting to full autonomy will likely take years more effort, a slew of new technologies — some of which are not in use today, and some of which involve infrastructure outside the vehicle — along with sufficient volume to bring the cost of these combined capabilities down to an affordable price point.
https://semiengineering.com/gearing-up-for-level-4-vehicles/