Did you know that cars were steered with a lever before the steering wheel was invented? Or that the passenger airbag is usually twice the size of the driver's because the passenger sits further from the dashboard? This infographic looks at the weird and wonderful histories behind the parts of the car and how they all came together to make the modern motor vehicle. It also includes some of the unlikely characters behind the development of its parts and some interesting facts about how cars came to be regulated on the roads.