Future Classic Friday: Toyota Prius

Toyota's mould-breaking Prius was the first commercially successful hybrid car. But is it a classic? If you think that hybrid technology is a modern phenomenon, then think again.

The original Toyota Prius turns 22 this year and is still the best-selling hybrid car across the world, despite a vast influx of imitators and clones. 

The original Toyota Prius is a rare thing these days. It was never sold in huge volumes in the UK, and many of those early cars were bought back by Toyota to be dismantled and analysed, proving that the manufacturer was particular about ensuring its technology has the staying power to last the distance. 

And that is something it sure has. Toyota Prius models with over 200,000 miles on the clock are not uncommon and in most cases are still going strong. 

So with that in mind, is there a case to suggest that the fish-eyed Mk 1 model has guaranteed future classic status?

Given that car collectors tend to gravitate towards vehicles that marked a turning point in design or technology, it makes a strong case for itself.

That early incarnation of Toyota’s ‘Hybrid Synergy Drive’ may seem a bit clunky in a modern context, not least its LCD-based digital displays and overly weird, plasticky dashboard, but it’s a decent car and one that is more than capable of holding its own in modern traffic. 

It wasn’t just the hybrid system that was innovative, either. The Prius used a 1.5-litre engine using the Atkinson combustion cycle for maximum efficiency.

It works by having a smaller compression ratio than expansion ratio, or put simply, it allows gas to escape before starting its compression cycle, thus deliberately reducing the engine’s power output to save fuel. Its 70bhp was equivalent to that produced by a 1.0-litre Yaris, but delivered in a more relaxed manner.

The engine was complemented by a 6.5aH nickel metal hydride battery (as opposed to the lithium-ion units used by most hybrid cars of today) developing the equivalent of 40bhp, which would power the car on its own in slow-moving traffic, or complement the petrol engine under more demanding driving conditions.

That supplemented the 70bhp petrol engine with an extra boost of power while using kinetic energy derived from braking and coasting to redeliver charge to the battery system - a system known as regenerative braking.

It was simplicity itself to drive, too. At low speeds, the Prius would trundle along in near silence, powered by its batteries and batteries alone.

Yet on the open road, it drove pretty much like a normal car, albeit one with a rather coarse sounding engine note, not helped by its CVT transmission, operated from a column-mounted lever.

It was clever stuff, and as the original Prius proved, it was relatively simple to install into a normal-sized family car.

Indeed, the Toyota Prius Mk 1’s only real downfall was that it looked so, well, weird… 

It’s understandable that Toyota wanted to create a car that looked different. It needed to not only to differentiate the Prius from the humdrum Toyota Corolla, but also for it to get noticed out on the open road.

Only by people asking ‘what’s that?’ did anyone really find out about it, and it certainly had a distinctive look about it. Compare that to the current crop of hybrid cars, which look just like the conventional models they’re based on.

The original Prius, then, was a game changer. A weird and wonderful one that held a niche appeal when new and is even more obscure today, but one that we believe has future classic credentials that will only evolve further as its place in motoring history becomes more notable. 

You can still pick one up for less than a grand if you look hard enough - and if you do, it could be a safe and sensible investment, as well as something of a talking point. Find a Toyota Prius for sale

Ask HJ

What is the lifespan of hybrid batteries?

While there has been considerable research on the life of full EV batteries, I wondered if you have any advice on battery life in hybrid cars. I am looking to purchase a used hybrid car, but I wonder if there is an age or mileage beyond which the batteries may have started to degrade? Clearly, this would not stop the vehicle from running, but I assume the fuel economy benefits will reduce over time? Any advice welcome.
All batteries will degrade from the first day of use, but with hybrid vehicles the impact is not as significant as the batteries are not in use all of the time and are only partly responsible for providing drive to the wheels. Although mileage plays a part in how much batteries have degraded it also depends on how the vehicle has been driven. Urban driving will mean more use of the batteries compared to motorway speeds, so theoretically a car that spends more time on the motorway will have a longer battery life. A degraded battery will be able to operate less of the time, so fuel economy will be reduced as the battery ages. However, cars like the Toyota Prius have been around a long time and many examples have gone past 200,000 miles, so a hybrid is capable of big mileages.
Answered by David Ross
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