The plan was that I’d drive a Toyota Mirai, while my colleague Jim Holder would bring the new hydrogen-powered Hyundai ix35 SUV we’re about to add to our test fleet. This would hardly be rallying at WRC level, but it might be just as significant. We pitched up in Teddington at the appointed 10am, and after time taken over photographs and who’s-driving-what, we fell to fuelling the cars.
Filling a hydrogen car is simple. You offer your card to a card reader, taking the dispenser hose when you see a positive response on the screen. Plug the dispenser into your car’s fuel tank aperture, noticing a red ring around the gas pipe that allows the pump to ‘talk’ to the car via infra-red communication. The car grabs the nozzle, there’s a short delay while the pair communicate, a buzz while the system tests itself and verifies all seals and then hydrogen starts to flow at 700bar – and -40deg C – into your tank.
At the end there’s a loud blow-off noise as the pressure is released, you’re invited to remove the nozzle and the job is done. In the Mirai, which holds 60 litres, you’re good for 300 miles-plus, but whereas 60 litres of petrol weighs around 40kg, the full hydrogen tank adds only an eighth of that to the Mirai’s kerb weight.
Anyone familiar with driving to Essex from west London will know there’s a stark choice between 50-odd miles of congested city driving or a longer, more peaceful 68-mile sojourn on the orbital M25 motorway. We chose the latter. Cruising nose to tail, the Toyota and Hyundai did what electric cars do best, cruising smoothly and quietly with the traffic at 60-70mph. The Mirai was roomy and luxurious, the ix35 somewhat more mainstream. Both were not only impressively refined to drive but also, more importantly, intuitive and easy. If we needed reassurance that hydrogen-powered cars need not affect – and might even enhance – our future driving convenience and pleasure, here it was.
Driving along, Cooley reiterated the reasons for his lifelong enthusiasm for hydrogen power. As most people now know, hydrogen is clean and, now the appropriate systems have been designed, easy to handle. Fuel cell stacks are getting smaller, cheaper and easier to accommodate in cars. Toyota talks of the Mirai and its prospects (700 built last year, 30,000 planned for 2020) much as it did the Prius 20 years ago, and that seminal hybrid model’s worldwide sales last year passed eight million. Those are the givens.