The challenges of finding space for hydrogen storage, a fuel cell stack, an electric motor and plenty of high-voltage power electronics has often prevented the various hydrogen fuel cell prototypes the world has already seen from being practical cars, even though many were large enough to be expected to be practical.
The Clarity goes some way to correcting that. This is a big saloon with a big cabin that’ll house four larger adults in plenty of comfort, or three kids across the back seat at a push (whereas a Mirai is a strict four-seater).
Our tape measure put typical rear leg room (our standard benchmark of what’s left in row two when the driver’s seat is set for a metre of front leg room) at 810mm – more than you get in a BMW 5 Series or a Mercedes-Benz E-Class – and showed head room to be comparable with those cars’, too.
Boot space is more disappointing because the location of one of the hydrogen tanks means you get limited overall loading length and there’s also no seat-folding or through-loading facility. Overall space is 334 litres, and although the boot is full width and of a good depth, there isn’t room to load long items like pushchairs and suitcases longways.