In sales terms the C3 has already toppled the iconic 2CV from its throne and the electric version also sticks to the formula of “keep it simple”. Launched in 2002, more than 5.6 million combustion-powered C3s have been sold, while 5.1 million 2CVs were produced in its 41-year career. Back then, the requirements were still simple: The 2CV was required to carry two farmers, a hundredweight of potatoes or a barrel of wine at speeds of up to 60 kilometres per hour. A modern small car has to be able to offer a good deal more than that and many manufacturers are struggling to create one that is suit…