The evolution of the connected car and especially autonomous driving technology continues to be dogged by concerns over ubiquity of cellular connectivity, such that contingency measures look like they will be necessary. This reflects both the fast-growing dependence of cars on full time connectivity, and the fact that cellular coverage is still patchy with black holes not entirely confined to remote rural areas. The cellular network differs from say utility infrastructure in being in a constant state of evolution, such that at any time quality of coverage and capacity vary considerably with geography, accentuated by the impact of terrain. It is also expensive to provide full coverage in countries with large sparsely populated areas so that the US for example…