McLaren launches its slowest model yet - a foot-powered P1

When buying a new car, you can usually pick from a variety of engines, interior trims, sometimes how many doors you'd like – but very few manufacturers let you choose the size of your new vehicle. But McLaren, always a strong representative of pioneering British engineering, has stepped up and revealed a more compact version of its P1 supercar.

It's powered by a groundbreaking organic motor and embraces the latest in power delivery technology – that's right, it's a ride-on P1, and gets up to speed via the furiously punting feet of a hyperactive toddler.