Toyota says despite its expensive, new-fangled fuel cell, the Mirai offers a driving experience no different from that of any other electric car.
After all, it is the power source that has been replaced, not the method of driving the wheels. From behind the wheel, this rings true, the car’s filled-sails brand of amenability being little different from anything else powered by a modest-sized electric motor.
The indicators of any real difference are on the peripheries of the experience. At start-up, the powertrain emits a subtle series of voltaic clicks and hums. At ‘idle’, it is audibly more active than the battery-only Tesla Model S, and it’s considerably noisier when under way.
If the dashboard display is to be believed, the fuel cell contributes energy to the motor even on part-throttle, although the noticeable whirr, graduating to a high-pitched whine, is produced by the less than cutting-edge Camry tech rather than the hydrogen-splitting bit.
The noise is chiefly a consequence of acceleration; at motorway speeds, where the fuel cell relieves the battery of all the heavy lifting, it settles back down.