http://www.greencarcongress.com/2018/02/20180204-nexo.htmlHyundai NEXO fuel-cell vehicles self-drive (Level 4) 118 miles from Seoul to Pyeongchang
. . . Five Hyundai vehicles completed the journey. Three vehicles are based on Hyundai’s next-generation fuel cell electric SUV NEXO, scheduled to be released in Korea next month, and the other two are Genesis G80 autonomous vehicles. All vehicles are equipped with level 4 self-driving technology, as defined by the SAE international standards, and 5G network technology. . . .
The Hyundai test marks the first time autonomous vehicles have operated on public highways at 110 km/h (68 mph), the maximum speed allowed by law on Korean highways.
The demonstration took place in Seoul on 2 Feb, with the ‘CRUISE’ and ‘SET’ buttons being pressed on the autonomous-driving steering wheel of each vehicle, at which point the cars immediately switched to self-driving mode and began the 118-mile journey to Pyeongchang.
Entering the highway, the vehicles moved in response to the natural flow of traffic, executed lane changes, overtaking maneuvers and navigated toll gates using Hi-pass, South-Korea’s wireless expressway payment system. . . .
During autonomous driving, a high volume of data is processed by the vehicles on board systems, necessitating large power consumption. A fuel cell electric vehicle is able to produce electricity to meet this power consumption, as well as powering the vehicles drive systems. Hyundai says that the fuel cell vehicle is optimal for this type of test. . . .
As mentioned upthread, I've been increasingly seeing the power requirements of autonomy being a possibly significant obstacle to combining them with BEVs. Presumably power needs will decrease over time, so we'll see if that happens in time to avoid this issue.