For initial autonomous vehicle (AV) applications, developers prefer as much structure as possible. Predictable driving styles, well kept roads and clear signage all make life easier for AVs. This is why most testing so far has taken place on freeways, and geo-fenced campuses in developed markets across Europe, China and the US. Some companies are testing prototype vehicles amid more chaotic traffic, but the general approach has been to minimise risk and perfect basic scenarios first.

This is partly why Brazil may have…