> The Robovan — as an actual van one could buy today—would sell.

One would think so. But slow self-driving mini-buses seem to be a niche item. San Francisco's Treasure Island had one from Beep for part of 2023 and early 2024. Las Vegas had one back in 2017, from Nayva. Local Motors had some, but is defunct. There are a few from WeRide on an island in Guangzhou. EasyMile has a few installations.

This kind of self driving, at 7 to 9 MPH, has been around since 2009. It works, but it's not that useful.