From £65,2198
UK drive of Toyota's hydrogen-powered Mirai confirms its impressive characteristics but also the current limitation of our hydrogen infrastructure

Our Verdict

Toyota Mirai

Toyota claims another first: Europe’s first ‘ownable’ hydrogen car

  • First Drive

    2015 Toyota Mirai UK review

    UK drive of Toyota's hydrogen-powered Mirai confirms its impressive characteristics but also the current limitation of our hydrogen infrastructure
  • First Drive

    2015 Toyota Mirai review

    The Mirai is Toyota's first stab at a UK production hydrogen fuel cell-powered car. What's it like to drive and does it make sense?
21 October 2015

What is it?

The Toyota Mirai is among the first hydrogen-fuelled electric cars to reach series production and be offered to customers as a regular private purchase – as opposed to a short-term lease deal, where customers are obliged to hand the car back, as has mostly been the case up to now. 

When UK deliveries begin next month, the distinctively styled saloon will be priced at £66,000, or some £32,605 more than the firm’s £33,395 Prius Plug-In Hybrid.

This appears steep, but the Mirai is among the most advanced road cars on sale right now. Prospective customers can also look forward to a £5000 government-backed subsidy as well as a comprehensive 24-hour, seven-day-a week concierge service and an extensive five-year/100,000-mile warranty that includes roadside assistance. 

Toyota is also offering the Mirai on a £750-per-month lease scheme over four years and 60,000 miles, which begins to make the Mirai an interesting proposition, especially for those seeking a city charge-buster who live near one of the UK’s nine hydrogen fuelling stations.

Don’t expect Prius levels of market penetration, though. With production limited to just 700 cars this year, Toyota says initial volumes will be restricted to just 12 in the UK, followed by a further 18 next year.

The starting point for the Mirai is the Prius Plus. The two cars share the same high-strength steel platform, MacPherson strut front and double wishbone rear suspension and 2780mm wheelbase.

With exaggerated exterior styling elements, including two large air ducts that dominate the front end, it certainly looks distinctive. It’s fairly big, too, at 4890mm long, 1815mm wide and 1535mm high. Without the need to package hot exhausts within the underbody, Toyota has provided the Mirai with a flat undertray. But with a drag co-efficient of just 0.29, its aerodynamic efficiency lags behind that of the competition.  

The Mirai uses a single electric motor delivering 152bhp and 208lb ft. It is essentially the same unit used in the Lexus 450h and is mounted transversely in the engine bay along with the power control electronics, where it provides drive to the front wheels via a fixed-ratio gearbox. 

The fuel cell stack, which uses a combination of oxygen captured from the air and hydrogen to create the electricity used to power the electric motor, is mounted underneath the front seats. Produced in-house at Toyota, it is claimed to possess a specific output of 2.0kW/kg – a 50% improvement in the electrical energy-producing efficiency of Toyota’s initial fuel cell stack revealed in 2008.

Key to the high efficiency is a patented 3D cell design which is claimed to clear waste water away from the surface of the electrode faster than previous cell designs achieved. As such, there is an improved flow of oxygen to the catalyst layer and an increased production of electricity.

The fuel cell stack, which is housed in a titanium case and weighs just 57kg, can operate in temperatures as low as -30deg C. It is also claimed to possess a similar lifespan as a conventional internal combustion engine. Toyota expects it to provide up to 300,000 miles of motoring before it requires overhauling.

Two separate carbonfibre and glassfibre tanks are used to store the hydrogen – one mounted under the front seat and the other behind the rear seats. Together they provide a combined capacity of 122.4 litres, which is enough to allow the Mirai to provide a claimed range of more than 400 miles. Refilling the tanks takes three to five minutes.

The relatively small 1.6kWh nickel-metal hydride battery used to store electrical energy recuperated on the run and produced by the fuel cell stack sits above the second hydrogen tank at the rear. 

What's it like?

The striking exterior styling carries over to the interior, which features a modern-looking dashboard with two TFT displays – one under the windscreen housing the speedo and power display functions, and another touchscreen device atop the centre console for infotainment. Elsewhere sits some less contemporary-looking switchgear sourced from various Toyota models.

The quality throughout the spacious cabin is similar to that of the outgoing third-generation Prius, with a variety of hard and soft-touch plastics as well as some less than dazzling graphics. It all feels solidly built, if a little cheap given the high price. With the fuel cell stack sited underneath the front seats, you sit rather high, although this affords good vision to each corner, making the Mirai easy to manoeuvre.

The long wheelbase provides plenty of room leg room in the rear seats, although it’s a strict four-seater, while boot space is limited to 361 litres by the battery and second hydrogen fuel tank behind the rear seat backs.

Given the complexity of the technology at play, the Mirai is extraordinarily straightforward to drive. As with the latest breed of electric cars, you press the start button, draw the stubby gear lever into drive and set off with a light nudge of the accelerator pedal.

Progress is ultra-smooth and, apart from a faint synthetically generated whine from the speakers under load, all but silent. Despite tipping the scales at 1850kg, step-off is quite brisk, making the Mirai well suited to stop/start city traffic. However, the performance quickly levels off, providing a claimed 0-62mph time of 9.6sec and top speed of just 111mph.

By sighting most of the heavy elements low down in its structure, the Mirai has greater agility and poise than you might expect. The ride is much improved over the Prius's, being more supple, smoother and with better body control. Bumps in the road don't disturb the smooth driving experience as much as they do its hybrid sibling. 

The steering is rather devoid of feedback but is quite direct in response and the chassis possess sufficient damping control to provide progressive body movements when you thread the new saloon along more challenging roads.

Unexpectedly, it also rides quite well on changeable UK road surfaces. There’s good small bump absorption around town and it copes with larger surface irregularities with greater authority than the Prius.  

Toyota considers fuel cell technology to be more suited to larger cars required to run longer distances rather than urban-based runabouts, which it says are better suited to existing plug-in hybrid technology.

This is reflected in the Mirai's on-road characteristics. With double-glazing on the side windows and a noise-reducing device that helps to cancel tyre roar, the Mirai isolates its occupants from wind and road noise well. Thanks to this excellent refinement and the elastic nature of its power delivery, the new four-seater is genuinely relaxing to operate.

What it lacks, though, is its own intrinsic character. Like most electrically propelled cars, the new Toyota proves a little too one-dimensional to really elicit any excitement on the part of the driver. It is highly competent, no doubt, but not the sort of car you are likely to be itching to drive simply for the sake of it. Still, with its only emission being water, the Mirai makes a bold environmental statement that many will be keen to pursue.

Should I buy one?

The Mirai is a breakthrough achievement – one that is sure to influence the way rival car makers set about mapping out their electric car future. It delivers all the environmentally friendly advantages of a battery-powered car without the need to plug into mains power for extended periods. That said, the hydrogen infrastructure in the UK is limited.

As with the original Prius, it is going to appeal to both early adopters and businesses seeking to provide themselves with an eco-friendly image. But with initial volumes severely limited, it is going to remain a rare showcase of Toyota’s fuel cell technology.

Toyota Mirai

Location Buckinghamshire; On sale Now; Price £66,000; Engine Electric motor, hydrogen fuel cell; Power 152bhp; Torque 208lb ft; Kerb weight 1850kg; Gearbox Single-speed fixed ratio; 0-62mph 9.6sec; Top speed 111mph; Economy 0.76kg hydrogen/62 miles (combined); CO2/tax band na

Join the debate

Comments
34

16 October 2015
£61,000 after the grant for a Focus competitor, how they expect us to take this seriously I don’t know but then they only expect to sell one a month, a massive loss leader for Toyota. £61,000 for a car with “quality throughout the spacious cabin is similar to that of the outgoing third-generation Prius” perhaps they’re pricing it on size, it’s nearly as long as the 7 seater XC90, good luck parking that ugly mother. “Hydrogen infratructure limited” really, what do you do when the nearest station is closed, park up for the night?, wait for the AA man hoping he’ll have some Hydrogen in a can. At least with an EV you can top it up at one of several million outlets, I’ve 30 at home and around 1000 at work.

 

Hydrogen cars just went POP

16 October 2015
xxxx wrote:

£61,000 after the grant for a Focus competitor, how they expect us to take this seriously I don’t know but then they only expect to sell one a month, a massive loss leader for Toyota. £61,000 for a car with “quality throughout the spacious cabin is similar to that of the outgoing third-generation Prius” perhaps they’re pricing it on size, it’s nearly as long as the 7 seater XC90, good luck parking that ugly mother. “Hydrogen infratructure limited” really, what do you do when the nearest station is closed, park up for the night?, wait for the AA man hoping he’ll have some Hydrogen in a can. At least with an EV you can top it up at one of several million outlets, I’ve 30 at home and around 1000 at work.

1000 outlets at work? Must be for all the hairdryers and straightening tongs!

16 October 2015
The important thing is not how the Marai competes with conventional cars at present but the potential of hydrogen fuelled cars. And this tech does sound promising. Much more so than the Victorian era internal combustion engine.

16 October 2015
Just so you know, the fuel cell dates from the Victorian era and the electric motor predates it.

16 October 2015
Just so you know, the fuel cell dates from the Victorian era and the electric motor predates it.

16 October 2015
Autocar wrote:

claimed range of more than 400 miles. Refilling the tanks takes three to five minutes

So the owner does not take a hit in terms of fuelling time and range. Brilliant. That is a killer feature, as is the fact that hydrogen uses standard distribution systems. So the fuel network could adapt to it relatively easily. An incredible achievement from Toyota.

16 October 2015
With exaggerated exterior styling elements, including two large air ducts that dominate the front end, it certainly looks distinctive.
Are you folks at autocar so afraid of Toyota you cant say what you really think?
Its the ugliest car since the Edsel and that saying something.
I agree with xxxx about fuel cells, whats the point when you can just plug in a battery powered vehicle in your own garage every night?

16 October 2015
lambo1 wrote:

whats the point when you can just plug in a battery powered vehicle in your own garage every night?

If running an electric car was so simple, we'd all have them. Sure this Mirai is ugly and expensive but it is early technology that will be refined and become cheaper and more efficient. But the question remains, how is the hydrogen produced - if we are to move away from fossil fuels we need to seriously increase our sustainable electricity output to sustain our appetite for energy.

16 October 2015
Actually with Elon Musks determination to make batteries cheaper and cheaper via his Gigafactory we may get affordable electric cars at some point sooner rather than later. Battery tech and the costs involved in getting a new infastructure together has been keeping electric cars at bay or dont you follow the tech news?

16 October 2015
Yet again no mention of cost per mile (mpg equivalent). A guy at work has a Leaf and pays .02p a mile (about 300+ mpg). Are Toyota stopping the press printing this most important fact???

 

Hydrogen cars just went POP

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