Petrol heads among us will have no doubt sniffed out the latest automotive offerings on show at Geneva last week. The Alfa Romeo 4C in matt orange, ooh. But a big shift to eco cars is evident. Green really is the new black. Even Rolls Royce unveiled an electric model. How long before we’re all plugging in rather than filling up? We’ll according to a 1970s boys’ science book we’re already well behind the times. As these classic illustrations demonstrate, the electric forecourt of the future should have been with us back in 1997. Hurry up guys, petrol’s not getting any cheaper…

