I wouldn't call this a "road vehicle", because there are basically no real world roads this flat. I drive a Chevy Volt in urban areas only and I'm constantly complaining how low the clearance is.
I could see this in use in factories, but this technology basically already exists so not sure what advantage these spherical wheels would give.
Yeah I was thinking of gigantic industrial/factory floor surfaces, some types of malls, and/or large theme parks. I think the first successful fully autonomous driving platform will probably have this wheel/frame style as a base, and operate within the confines of some single entity's road/surface network.
Most super cars are what you would call level road vehicles. The distinction wouldn't be entirely new