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What to say about the Toyota Prius in 2021? A car that was once a technology trailblazer seems now to have become properly retro, even while it’s still being built and sold.
The awkward-looking wedge, an eco-punk icon, not only brought Toyota’s hybrid synergy drive to the masses, it also debuted the brand’s excellent TNGA architecture and set the scene for the company's absurd hybrid success, which now sees the RAV4 version topping the sales charts.
So, after all these years (25 to be precise), is the Prius’s time finally over? Or does this quaint hybrid hero still have more to offer? I took a top-spec I-Tech for a week to find out.
Full disclosure, the Cleary family’s main transport is a Toyota Corolla SX Hybrid hatch, purchased new in mid-2021.
And the chance to catch up with the Corolla Hybrid sedan in entry-level Ascent Sport form, boasting an upgraded motor and battery set-up (added in late 2022) was one I didn’t want to miss.
Four-door sedans of any description are a rarity these days, but Toyota is reluctant to let go of the format with the Camry remaining a popular option (not just with cab and Uber drivers) and the booted Corolla retaining a committed bunch of devotees.
So, how does this car compare to the hatch, and have the recent powertrain improvements made a meaningful difference to its performance and economy? Read on to find out.
The Prius can rest its weary head. The Age of the Hybrid has begun. Even though this iconic eco car might have lost its ultimate purpose to more mainstream models in the last few years, it’s still the best execution of Toyota’s hybrid tech on the market and if you can look past its divisive-as-ever looks, it’s comfortable and practical, too.
The brand’s Australian division promises the Prius will stick around in one form or another, so we’re keen to see what its next iteration will look like. Plug-in? Fully electric? Time will tell.
After several years in market, the Toyota Corolla Ascent Sport Hybrid stands up well. Late 2022 upgrades have helped keep the hybrid powertrain on the pace and the multimedia system competitive. The sedan layout is better than the hatch for carrying people and cargo, it’s a refined and comfortable drive, and the ownership package sets the pace in this category. That said, safety is good but could be better, the CVT’s a bit drony, there are some small things we’d like to see on the standard equipment list (adjustable rear ventilation, extra USBs) and there’s room for improvement in terms of in-cabin storage. But overall, it’s hard to go past this small sedan proposition.
The Prius is the very visage of economic motoring. Derided by big-engine lovers, and adored by the eco-crowd, the fact that the Prius’s wedge-shaped frame is more about function than form tells you everything you need to know about this car.
It blends with Toyota’s latest design language, the face and bodywork containing some subtle nods to other models that would launch after it, like the Corolla, Camry, and C-HR.
What always surprises me about even this top-spec Prius is its dorky ride height. For a car with such a low drag coefficient, it sits so far off the ground! The 17-inch wheels look almost out of alignment with the body in those wheelarches.
Round the back, the Prius’s integrated spoiler and glasshouse bodywork are as divisive as ever, with more extreme pointed light fittings leaning into the effect created by its boxy, rear three-quarter view and mirroring the shape of the LED headlights at the front.
Of course, this car is less about being looked at as it is about its drag coefficient of 0.24 Cd, which is one of the lowest on any production car.
Inside, things again prove divisive, with a minimalist dash, a swoopy gloss highlight piece that frames the central vents and multimedia screen, and an odd, centrally mounted dash cluster, which is a usability faux pas.
In the case of the I-Tech at least there’s a holographic display which can put up useful information to help prevent your eyes from drifting too far from the road. Still, I can’t help but feel like this whole interior ethos is futuristic for the sake of being futuristic, with a little less thought given to how practical it is, compared to the brand’s other models.
The leather-appointed trim across the wheel and soft plastics in the door and dash-topper are appreciated, and there’s attention to detail in the little ‘Prius’ logos on the vents. However, I found the dull multimedia screen to be susceptible to glare during the day, and the big integrated panel in which it sits is made from a tinny gloss plastic, which will easily to get covered in fingerprints and scratches.
The current Corolla sedan arrived in late 2019, a bit over a year after the hatch, and the car’s dramatic face with long angular headlights and huge lower grille has held up well.
Always a subjective call, but I think it still looks fresh and distinctive, in the case of the sedan, balanced by a less complex rear treatment, no doubt applied with a four-door buyer’s typically more conservative tastes in mind.
Worth noting for an entry-grade model our Ascent Sport looked particularly classy in ‘Atomic Rush’, a sedan-only body colour, and overall the car’s ‘three-box’ proportions are well balanced, helped by the base car’s step up from 15- to 16-inch alloy wheels in the 2022 upgrade.
The interior is simple without crossing over into plain, the dual-level dash design accommodating an 8.0-inch media screen standing proud in the centre, and a compact instrument binnacle sitting under a curved brow.
The grey fabric seat trim looks tough but doesn’t feel it, with some squiggly quasi-quilting in the centre panels adding visual interest. The only other hint of flashiness being gloss black finish panels in the centre console, around the ventilation controls and media screen.
If nothing else, all of the Prius’s edgy design gives it plentiful interior space. Toyota granted this generation of Prius a low seating position and tall roof, which combine with the distant dash elements to make for a spacious cockpit for the front two occupants.
The seat design in the top-spec I-Tech is also cushy, reminiscent of the seats in high-spec Camrys, and I had absolutely no trouble finding a comfortable driving position. If there’s one thing to be said for the annoying, centrally mounted instruments, it’s that you don’t need to consider the position of the wheel interfering with their visibility.
The Prius’s total glasshouse grants superb visibility out the front and sides, with large wing-mirrors, too. The only downside is that integrated spoiler at the back, which makes for a distracting view out the rear mirror that I’m sure any owner will quickly become accustomed to.
Soft trims across the doors and centre console, even in the back seat, make the Prius cabin a comfortable place to be, too.
Ergonomics have not been forgotten, with the multimedia screen and climate unit having useful and easy-to-reach physical dials and toggles for all the key functions. Even changing gear is a breeze in the Prius, with its odd little rosebud-shaped shifter simply a flick of the wrist from where your arm sits.
I do wish Toyota had made better use of the large area under the climate unit, however. The front part of the centre console is exclusively for the wireless-charging bay alone, and the rest of the space is constructed from a smoothly contoured gloss-finish plastic panel. It has looks to match the Prius aesthetic, but it’s no good for storing anything other than a single phone. It would have been better to make a large bay here with a rubberised finish.
Thanks to the lack of a physical handbrake in the centre or any other buttons or functions, there are two large bottle holders with variable edges.
A huge centre-console box and large door bins round out the Prius’s front-seat storage options.
Room in the rear seat is excellent, my 182cm tall frame had stellar amounts of space for my legs and head, as the roofline continues through to that raised rear spoiler. The comfy seat trim continues, although the padding in the base is notably not as good as it is in the front.
There are some useful pockets on the backs of the front seats and a drop-down armrest with cupholders for rear passengers, too.
Finally, the awkward rear of the Prius makes for a fantastic boot capacity, one advantage this car still holds over its hybrid Toyota stablemates. Capacity for the I-Tech is a mid-size-SUV rivalling 502-litres (VDA), which easily consumed our CarsGuide test luggage set and is even bigger than the base Prius, at the cost of the space-saver spare wheel. The I-Tech only has a repair kit to go with its larger alloys.
At just over 4.6m long, close to 1.8m wide and a fraction over 1.4m tall, the Corolla sedan is a ‘big’ small car. And at 2700mm, the sedan’s wheelbase is 60mm longer than its hatch equivalent.
There’s plenty of breathing space up front and storage runs to generous door bins with space for large bottles, two cupholders in the centre console, a lidded box (which doubles as a centre armrest) between the seats, a decent glove box and the wireless charging tray in front of the gearshift. That’s all fine, but some extra oddments space in the centre console would be nice.
Move to the rear and the sedan’s extra wheelbase length manifests itself in the shape of noticeably more room than the hatch.
Sitting behind the driver’s seat set for my 183cm height, I enjoyed good legroom and ample headroom. Three adults will be okay for short to medium journeys and a trio of up to teenage kids will be fine for the long haul.
There’s a fold down armrest with two cupholders built in, although the cushion lowers all the way onto the seat creating a slightly awkward downward angle. And no map pockets on the front seat backs feels a bit stingy.
The rear door bins can accommodate a medium-size bottle and a small tray at the back of the front centre console is where you’d like the adjustable ventilation and USB outlets to be, but sadly, they don’t exist.
In fact, power and connectivity options number just two; a USB-C socket in the front for charging and media connection as well as a 12V outlet in the front centre storage box.
Modest boot space is an Achilles Heel for the Corolla hatch, but the sedan’s 470 litres of cargo volume is way better.
It swallowed our three-piece luggage set or the bulky CarsGuide pram with room to spare, and the 60/40 split-folding rear seat lowers to liberate extra space. Just bear in mind that the relatively tight aperture is a large-load disadvantage relative to a wide-opening hatch door.
Interestingly, there aren’t any tie-down anchors in the boot to secure loads, but there’s a space-saver spare under the floor.
Also worth noting the Corolla Hybrid a no-tow zone. If you need to hook up a boat or campervan, the 2.0-litre non-hybrid Corolla sedan is rated for a 1300kg braked trailer (450kg unbraked).
This Toyota Prius in top-spec I-Tech form costs a whopping $45,825 before on-road costs, which is a tall order, especially given the fact that the technical advantage this car once had to help justify its price-tag has been lost to the rest of Toyota’s range.
An equivalent Corolla hybrid, even in top ZR trim, can be had from just $34,695, and even the much larger Camry in its highest hybrid SL trim is more affordable, at a suddenly cheap-looking $42,790. All three Toyotas are sourced from Japan.
Not a good start in the value battle, then, especially since those other Toyotas are not just hybrids, but great cars in their respective segments.
The Prius I-Tech’s most direct rival is the similarly shaped and sized Hyundai Ioniq Premium, which can be yours from $40,390 with competitive equipment. Hyundai is not only hunting Toyota with this car, but flexing its deep pockets by selling the Ioniq in Australia as not just a hybrid, but a PHEV and a full EV, too.
Thankfully, the I-Tech comes with some decent gear, sporting 17-inch alloy wheels, a 7.0-inch multimedia touchscreen with Apple CarPlay and Android Auto connectivity, digital radio, a 4.2-inch digital information display, a holographic head-up display, full LED lighting with auto-levelling, leather-appointed seat trim, auto dimming rear vision mirror, wireless phone charging, 10-speaker audio, and improved interior trims over the base car.
The I-Tech also scores a larger boot capacity and an improved safety suite compared to the base Prius. More on that in later sections of this review.
Is the Prius “good value” then? It's still a no, as all of this equipment can be had in bigger, more mainstream Toyota models, and far more affordable rivals. It’s a shame Toyota hasn’t brought the Prius’s cost down in the five years since this generation launched, because in today’s market it makes less sense than ever.
That said, there is a certain niche audience for this car. One that will always love its little innovations, like the fact that it has one of the lowest drag coefficients on the market, its stellar fuel-consumption number, and its claimed 40 per cent thermal efficiency.
As mentioned, small sedans aren’t exactly thick on the ground in the Aussie new-car market, but there are three similarly-sized four-doors in close range to this Corolla Ascent Sport Hybrid’s $32,110 (before on-road costs) asking price.
Namely the Kia Cerato Sport+ ($31,440), Mazda 3 G20 Pure Vision ($32,320) and Subaru Impreza 2.0i-S ($32,590).
None can match the Corolla’s hybrid efficiency, but each is well equipped for a small car in the low $30K bracket and the Corolla takes a lengthy equipment list into battle against them.
Aside from the performance and safety tech covered a little later, the Ascent Sport Hybrid’s standard features include an 8.0-inch touchscreen multimedia display with voice control, Android Auto and (wireless) Apple CarPlay, six-speaker audio with digital radio and in-built satellite navigation.
There’s also climate control air (single-zone), a 7.0-inch information display in the instrument cluster, keyless entry and start, wireless phone charging, active cruise control, an electro-chromatic rear view mirror, 16-inch alloy wheels, LED headlights, tail-lights and DRLs as well heated door mirrors.
The seat trim is fabric and for things like rain-sensing wipers, side and rear privacy glass, as well as a ‘Premium’ steering wheel, you’ll need to step up the SX Hybrid Sedan at $33,780. But the Ascent Sport lines up well relative to its direct competitors.
It wouldn’t be a Prius without Toyota’s signature hybrid synergy drive technology. In this most original case it consists of a 1.8-litre four-cylinder petrol engine, which uses the more thermally efficient but less powerful Atkinson combustion cycle, producing 72kW/142Nm, paired to a set of electric motors on the front axle, which can produce up to 53kW/163Nm.
Combined system output is rated by Toyota at 90kW, driving the front wheels only via a continuously variable automatic transmission (CVT). This system is the same one now also employed in the C-HR and Corolla hybrid grades.
The Prius’s electric motors source their power from an older design nickel-metal hydride battery (instead of the more modern lithium-ion setup) located under the boot floor.
The Corolla hybrid is powered primarily by a naturally aspirated 1.8-litre four-cylinder petrol engine operating on the ‘Atkinson Cycle’, which adjusts cam timing to maximise the effective cylinder expansion ratio (compression stroke vs power stroke) for greater efficiency and reduced emissions.
But the downside of this combustion cycle is a relative lack of power, which is where the car’s primary AC synchronous, permanent magnet electric motor comes into play.
Upgraded in late 2022, the motor now features double the number of magnets (per pole) inside the rotor.
At the same time a lighter lithium-ion battery was added, featuring greater input and output power compared to the nickel-metal hydride unit it replaced.
A compact starter/generator (effectively a second electric motor) is powered by the engine (it also starts it) in turn sending energy to the main drive motor and battery.
The end result is combined outputs of 103kW (+13kW) at 5200rpm and 142Nm at 3600rpm, although it’s worth noting Toyota has a strange habit of not including the torque output from the electric motors in its overall numbers for hybrid models.
With the primary motor alone producing more than 160Nm of pulling power, you’d have to imagine the actual combined torque figure is somewhere in the region of 250Nm, with drive going to the front wheels via a CVT auto.
The Prius’ sandpapered hybrid drive, low drag number, weight reductions, and low-rolling-resistance tyres add up for a stellar official/combined fuel-consumption figure of just 3.4L/100km. While its signature hybrid tech might be available on other Toyota’s, it’s here where the Prius still shines, undercutting the others by almost a whole litre every 100km.
But can it live up to that promise in the real world? Over my week of what I would consider to be reasonable ‘combined’ driving conditions; with plenty of traffic, freeways, and suburban driving, the Prius returned a stellar figure of just 4.0L/100km. This is not just one of the lowest figures I have ever achieved on a test car, it is even lower than the Corolla Hybrid that I tested over a three-month period. I couldn’t get that car below 4.9L/100km, despite by best attempts.
For a true rival comparison, my week-long test of the Ioniq hybrid in 2019 had the Korean managing a fuel number of 4.6L/100km.
You need not worry about kWh energy consumption for the Prius, as its hybrid system’s software manages the state of battery charge on the fly. It will simply run the engine to charge the battery if levels drop too low, although it always feels good to make the most of the motor’s regenerative braking to keep the battery topped up.
It’s clear that the Prius is still the king of hybrid, then. At least for the time being. All Prius models have 43-litre fuel capacities and are able to consume base-grade 91RON unleaded.
Toyota’s official combined cycle fuel economy number for the Corolla’s hybrid powertrain is 3.9L/100km, the 1.8-litre engine emitting 81g/km of CO2 in the process.
That’s up slightly from the pre-upgrade model’s 3.5L/100km claim, but over a week with the Ascent Sport we covered around 250km of urban, B-road and some freeway running, returning an average of precisely 3.9L/100km (at the bowser), which is an outstanding result for a close to 1.4-tonne four-door sedan.
Of course, the super smooth stop-start system (controlled by the starter/generator) plays a part, plus the bonus is the 1.8-litre four is happy to accept ‘standard’ 91 RON unleaded, and the fuel tank holds 43 litres, which translates to a range of just over 1100km. Pretty great.
The Prius was responsible for popularising Toyota’s Hybrid Synergy Drive, and fittingly, it still feels like the best execution of the technology on the market. That instantly available torque from the electric motor is sleek, quiet, and easy. It feels as though the Prius can make more extended use of purely electric drive than not only its rivals, but all other Toyota and Lexus hybrid products.
Despite its awkward exterior looks, the ride and handling of the Prius are excellent, thanks to its robust TNGA-C underpinnings (in fact, the Prius was the car to debut this platform for Toyota). It tilts into corners nicely, despite a frumpy ride height, and deals with bumps in its stride. This is a comfortable car, and the Lexus influence here is undeniable. The steering characteristics are also smooth and responsive. I wouldn’t go so far as to say the Prius is fun to drive, but it is certainly comfortable and compliant.
What the Prius lacks is the lower, firmer, and more aggressive ride and handling characteristics of its Hyundai Ioniq rival, perhaps a telling insight into the trajectory of each brand.
These characteristics add up to an around-town driving experience that really is a breeze. It’s quiet in the cabin and at times genuinely hard to tell whether the car is using its electric motors or the engine. When it comes to bursts of acceleration, the Prius might surprise you. Using both the motor and engine in tandem, I found that the Prius can sprint from the line with an alarming urgency, more so than its Corolla sibling. With the same tech behind the accelerator pedal, it’s hard to imagine why.
Once the electric motor has reached its strictly defined limit, though, the engine breaks in with a vengeance, and this car does have an anaemic follow-through when the electric components fall to the wayside. As in other applications of this drivetrain, the 1.8-litre Atkinson-cycle petrol engine can be thrashy and noisy when a lot is asked of it.
Of course, driving in such a sporty manner is hardly the point of the Prius, and where it really excels is in that day-to-day traffic grind, where the hybrid system works largely in the background to maximise the time spent with the engine off. The best part? While you can really fall into the hybrid system’s addictive fuel-saving displays, which really encourage hypermiling, this is a set-and-forget system. You can drive the Prius like any other car, and it will be trim on fuel consumption anyway. It’s not like I was trying awfully hard to attain my weekly figure of 4.0L/100km, so I’m sure it can do better over the long term.
The Corolla Ascent Sport Hybrid is a comfortable, stress-free driving experience. Toyota’s series parallel hybrid set-up means the wheels can be driven by the internal-combustion engine, electric motors, or both. And the transition happens seamlessly.
Start-up is silent with the motor(s) doing the driving at low speed, the petrol engine kicking in as the power requirement rises.
As the engine operates it’s also charging the battery and under braking the front wheels turning causes the motor and generator to send power to the main battery pack, as well.
Toyota doesn’t quote acceleration figures for the Corolla but you can expect 0-100km/h in around 12 seconds, which is hardly neck-snapping, however this hybrid combination provides enough torque for nimble acceleration in the city and suburbs as well as easy freeway cruising.
Then there’s the Continuously Variable Transmission. I’m no CVT fan, largely because of the disconnect between road speed and engine speed it creates. The transmission is always trying to keep the engine in its efficiency sweet spot and the most noticeable byproduct is an incongruous droning sound.
Developed by transmission specialist (and Toyota subsidiary) Aisin, the Corolla’s unit is ‘tighter’ than some but the sluggish ‘slipping clutch’ effect is still there from time to time.
Underpinned by Toyota’s TNGA platform, precise handling and excellent ride comfort are dynamic hallmarks of this 12th-generation Corolla. And the Ascent Sport Hybrid Sedan is no exception.
Suspension is by struts at the front and multi-links at the rear, and compliance is super impressive, especially for a car of this size.
The electrically-assisted steering is responsive and road feel is good, the car remaining planted and predictable, with only modest body roll if the red mist descends and you decide to ‘push on’ through your favourite set of corners.
This kind of response is especially noteworthy given the car’s low-rolling resistance Bridgestone Ecopia rubber (205/55) is primarily designed for efficiency rather than race-circuit grippiness.
Braking is by 255mm ventilated discs at the front (slightly smaller than the 2.0L non-hybrid’s) and 265mm solid rotors at the rear. They’re progressive with good pedal feel. Not always the case when regenerative braking is part of the picture.
In terms of general comfort and ergonomic efficiency, the seats remain comfortable, even over road-trip-style stints, while the mix of physical and digital controls is sensible and works well.
The Prius wears a maximum five-star ANCAP safety rating to the 2016 standards, although even in today’s market it has a great active-safety suite.
Standard modern active features on all Prius models include freeway-speed auto emergency braking with pedestrian and daytime cyclist detection, lane-keep assist with lane-departure warning, adaptive cruise control, traffic-sign recognition, and auto-high beams. Our top-spec I-Tech adds blind-spot monitoring and rear cross traffic alert, for an overall excellent suite.
All Prius varaints are also equipped with seven airbags consisting of the standard front, side, and head, as well as a driver’s knee airbag, and the standard array of electronic stability and brake controls are also present.
The Corolla Ascent Sport Hybrid Sedan boasts a maximum five-star ANCAP rating, although the assessment was in 2018 and the criteria have been dialled up since then.
That said, active (crash-avoidance) tech includes AEB - operating from 10-180km/h (with pedestrian and cyclist detection from 10-80km/h), active cruise control, lane trace assist, lane-keep assist, emergency lane keeping, road sign assist and auto high beam.
‘Active Cornering Assist’ and a reversing camera are also standard, but sadly, blind-spot monitoring (with ‘Safe Exit Assist’) and rear cross-traffic are optional.
If a crash is unavoidable, there are seven airbags on board (front, front side, full length curtain and driver’s knee). No front centre bag, though.
There are three top-tethers across the back seat for baby capsules or child restraints with ISOFIX anchors on the two outer positions.
Also fitted is a manually-triggered, roof-mounted SOS button for a back-to-base call that can direct emergency services to the vehicle's location if required.
Toyota’s range-wide warranty currently stands at five years or unlimited kilometres, which is really the accepted industry standard and matches its key Ioniq rival.
Annoyingly, however, the Prius needs to adhere to six-monthly or 10,000km service intervals. Said intervals are capped to $165 per visit for the first six visits under Toyota’s “service advantage” program, after which time you fall back to Toyota genuine servicing with significant price hikes to $221.97, and $425.47 for the next two services covering four years or 80,000km.
A year of roadside assist is included, after which time you will need to subscribe to Toyota’s program, from $89 a year.
While Toyota’s offering is on par with many, it’s hardly the cheapest or most comprehensive we’ve seen.
Toyota covers the Corolla with a five-year, unlimited-km warranty, which is the industry standard these days. But significantly, the hybrid battery is included and if you follow the annual servicing schedule for those five years, your engine and driveline warranty extends to seven years and the battery to 10 years (if the latter is also inspected annually). Impressive.
Seven years emergency assistance is provided (expenses related to car hire or towing), and corrosion (to the point of perforation) is covered for seven years.
On top of that ‘Toyota Connected Services’, accessed through the ‘myToyota’ app, is complimentary for 12 months, offering everything from vehicle data and member discounts to driving insights and multimedia profiles.
Servicing is recommended every 12 months or 15,000km, and ‘Toyota Service Advantage’ capped pricing is available, with the number sitting at $245 for the first five visits to the workshop.
That’s up from $175 when the current generation Corolla launched here in 2019, but it’s still a sharp price.