Toyota showed off a special version of its new Mirai saloon this week to celebrate Back to the Future day.<br />The Japanese carmaker's take on the time-travelling DeLorean from the popular movie series has the trademark gull-wing doors and the same, bare-metal bodywork seen in the Hollywood film.<br />But Toyota's car is not fuelled by banana skins.<br />This one runs on hydrogen.<br />Mirai - meaning "future" in Japanese - is Toyota's fuel-cell vehicle, a hybrid car powered by two tanks of high-pressure hydrogen and an electric motor.<br />For the world's biggest carmaker by sales, this is no mere movie tie-in project.<br />It is Toyota's next big visionary bet.
