Technically the Honda Insight came first, but it never caught on like the Prius did. From the moment Cameron Diaz - or was it DiCaprio? - was papped in one, it became the most fashionable way to save the world. Even though it actually won't.

You might think the world's best-selling car is some bland Toyota or a hillbilly pickup truck. But nope, it's actually the Cozy Coupe - the plastic contraption that gave a billion kids their first fix of driving, and most likely their very first crash.