Suddenly, at 5:21 PM one day in 2042, all cars accelerate as much as physically possible. A dozen seconds later, they start crossing the median in coordinated f

Suddenly, at 5:21 PM one day in 2042, all cars accelerate as much as physically possible. A dozen seconds later, they start crossing the median in coordinated fashion, targeting each other via car-to-car communication and cameras and radar. Each car impacts another one under perfect autonomous control. 85 million die in the USA alone. Only two countries are spared, Vatican City and Cuba.