Toyota Prius vs Hyundai Ioniq

What's the difference?

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.

Just like the Kona EV, Hyundai's Ioniq is still one of the best EV options on the market today. It strikes an excellent balance by offering significantly more range and better energy consumption than the more affordable Nissan Leaf or MG ZS EV, while providing the familiarity of the Hyundai spec and drive experience at a price only a little higher than a top-spec Prius.

Its relatively high score is a product of these factors, but also the way in which its interactivity offers the early adopters the engagement they will be searching for.

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 Ioniq follows in the footsteps of eco hatches before it. You'll note this car's similarity in profile to the Toyota Prius, both shaped as such to secure low drag figures and therefore better economy and longer range.

While the Ioniq is a little more sedate than the wacky angles of the current Prius, there's no getting around the fact it's not exactly a cool shape. You could say it's interesting, perhaps, in the way it warps the low-drag box to Hyundai's styling cues, but dorky nonetheless. The LED headlights help lift it  a little, but the filled-in grille and small 16-inch wheels hardly lend this car extra street cred.

The Ioniq is more a proof of concept for early adopters who care a little less about the way the car looks and a little more about its drivetrain and technology, which is clearly the  focus here.

This can be seen in the Ioniq's interior, which has been re-worked for its most recent update. The digital features are impressive, with the floating 10.25-inch screen now totally dominating its dashboard.

I also like how the brand has given the instrument cluster a more modern design, with a cool floating bridge element over the top to eliminate glare, and, as always, Hyundai has made ergonomic use of its excellent switchgear and tidy steering wheel from the i30 and Kona ranges.

The climate unit has lost its tactile dials, replaced by touch-panel controls, and the lack of a transmission under the centre console has allowed plenty of negative space for the brand to play with, in this case a huge storage bay. There are also elements from more recently launched Hyundai models, which help to tidy the centre space up further, like an upright wireless-charging bay and shift-by-wire drive selector, which all looks very modern and neat.

It's a step towards things to come from the newly minted Ioniq sub-brand, which will do a lot more of this stripped-back, space-saving stuff with its next vehicle, the Ioniq 5 SUV. For now, though, the Ioniq is good as a half-step into the future. It's not as outlandish as a Tesla Model 3, for example, and will better suit a buyer looking for something a bit more familiar that still has a futuristic edge.

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.

As mentioned, there's actually quite a lot of space in the Ioniq cabin, and the design has been further stripped back with its most recent updates.

The front seat seems a bit high for a hatch, although ergonomically everything is correct for the driver, with a good amount of adjustability in the seat back and wheel.

The big, bright multimedia touchscreen is easy to use, and the single centrally mounted volume dial is welcome, but I do sorely miss the dials  for adjusting fan speed and temperature. Touch-panel controls, to me at least, are always inferior.

As already mentioned, the centre-console area under the climate unit has been almost entirely deleted for the electric variant, granting the driver a little more knee room, and leaving a deep rubberised bay for loose objects, maybe even small bags. This area also houses two 12v power outlets and one USB port. The centre console has been re-worked to include a smart, space-saving upright wireless-charging bay for your phone, the shift-by-wire console, and controls for the heated and ventilated seats. This area also hosts two large bottle holders, and a large centre-console box.

As is usual with Hyundai models, there's also a large bottle holder in the door, alongside a practical bin.

Rear passengers are treated to decent legroom, about on par with what you'd expect in a hatchback. Headroom is a little limited, both for getting in and out, with the descending roofline, so if you have family or friends taller than my 182cm height, they might be less than pleased.

The rear-seat area gets bottle holders in the doors and in the drop-down armrest, although there are no power outlets, just dual adjustable air vents.

The hatch body of the Ioniq makes for a decent boot volume of 357 litres, enough for a large pram or, in the case of my testing, the largest of the CarsGuide luggage cases, with ease. Hyundai gives you a little satchel to tidily store the standard powerpoint to Type 2 charging cable. A Type 2 to Type 2 cable, which you will need to charge at public outlets (up to 7.2kW) is not included.

On the one hand, forking out over $50k for a car which looks like this is a tall order. On the other hand, there is no other electric car that really falls into this price bracket, and when you think about it, it's only a few thousand dollars more than a top-spec Prius.

The aggro never-EV types will argue you can have a very good hot hatch, like say, Hyundai's own i30 N for less, but then this car really is for those early adopters who are after a slice of future drivetrain tech rather than a complete value offering.

In the context of the EVs currently available in our market, the Ioniq shines. Yes, it is more expensive than rivals like the Nissan Leaf or MG ZS EV, but it also offers more range than either of those, at 311km measured to the more accurate WLTP standard.

This is short of Tesla's Model 3 standard range, but also more than $10k more affordable, and as I discovered on my week of testing; 311km, and it really is 311km, is plenty for a predominantly urban commuter to get by with either routine maintenance charging, or a once-a-week stop at a DC charger.

So, value then? As this car has probably the minimum electric range you really want for an Australian city at a price only a little above rivals which fall short, it's in quite the sweet spot.

Oh, you probably want to know about equipment, too. Our Ioniq electric Premium scores familiar equipment from the facelifted Hyundai i30 range, including a 10.25-inch multimedia touchscreen with Apple CarPlay and Android Auto connectivity, built-in sat-nav integrated with charging-station distances, a 7.0-inch digital dash cluster, eight-speaker premium audio system, 16-inch alloy wheels, LED headlights and DRLs, single-zone climate control, leather-appointed interior trim with heated and cooled front seats, a heated steering wheel, auto-dimming rear vision mirror, wireless phone charger, opening sunroof, and keyless entry with push-start ignition.

It's a good array of items, and we'll touch on this car's fully equipped safety suite later. The only notable omissions for now are the lack of a holographic head-up display and the lack of dual-zone climate control.

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 Ioniq electric has a single motor on the front axle producing 100kW/295Nm. It's the least powerful EV in Hyundai's range, but still out-punches cars like the Toyota Prius on raw power. It drives the front wheels via a single reduction-gear transmission, and the Ioniq electric also has re-worked regenerative braking for its most recent update.

This is powered by a huge-for-its-size 38.3kWh lithium-ion battery pack under the floor.

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.

The huge 38.3kWh battery pack and official combined energy consumption of 15.7kWh/100km, grants the Ioniq electric an impressive 311km (WLTP) range. As already mentioned in the pricing section, this lets the Hyundai electric hatch strike a good balance for urban commuters, however, under our mostly urban testing, it's an even better story.

For context, electric cars are far more efficient when operating in an urban scenario than they are on the open road. This is because they can regenerate energy more often and are less susceptible to losses from drag. The Ioniq has a superb regenerative-braking system, which can be completely customised to the user's preference. Want to drive it with no regen braking (like a normal car)? You can. Want to have the full eco experience, and have the car's motor bring it to a halt even without using the brake pedal, thereby maximising the amount of energy recouped? You can absolutely do that, too.

For most of my week, I stuck the Ioniq in its maximum regenerative setting and was very impressed to find it return an efficiency rating of 12.3kWh/100km. Not only is this number well below its claim, it's by far the most efficient electric car I have driven, and the only one I haven't tried yet is the brand-new MG ZS EV.

Colour me very impressed. The Ioniq charges via the most popular socket, the European Mennekes Type 2 combo. On DC, the Ioniq can charge as fast as 100kW allowing for a charge time of 54 minutes from empty to 80 per cent. On AC, its max charge input is a frustratingly low 7.2kW, making for a charge time of six hours and five minutes (more expensive rivals will charge at 11kW or even the max 22kW),  while from a 240v wall outlet (~2.3kW) it will charge in 17 hours and 30 minutes.

My single charge session was at a council-supported clean-energy Tritium charger with a max output on DC of 112kW. It charged my Ioniq from about 35 to 80 per cent in 32 minutes, and cost around $7.

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 Ioniq's familiar Hyundai switchgear makes it largely feel like the brand's i30 from behind the wheel, and this is a very good thing. This car is immediately ergonomic and user friendly, although the seating position is a little high, preventing it from feeling particularly sporty.

The Ioniq emits a pleasant choral tone at low speeds, which enhances the perception you're steering something from the near future. It also helps alert pedestrians nearby, which was one of my pet peeves about the silent Tesla Model 3. The noise is interesting enough that you'll have people peering closely at it to figure out what's going on. It even gets louder as you accelerate, as though the motor is making it and it's not entirely artificial. Cool.

This EV is silky smooth to drive and accelerate. Like other Hyundai electric cars, it doesn't have the unleashed electric torque of a Tesla, but it feels  well attuned to driving around in an urban scenario, with viscous acceleration and regenerative braking. I was surprised to discover how heavy it feels, though.

I was expecting it to be heavier than its hybrid or PHEV counterparts but compared to the hybrid Prius I drove only a week or two prior, the electric Ioniq feels obese.

Upon closer examination, the Ioniq electric weighs 200kg more than the Prius, at 1575kg. It doesn't sound outrageous but it's enough to have this little car's suspension wallowing and occasionally crashing over bumps that wouldn't bother its hybrid versions or, indeed, the Prius.

This is perhaps emblematic of the issues facing smaller EVs like this. To get more than 300 kilometres of range, they need a lot of heavy batteries. Manufacturers can better hide this with the existing heft and better suspension travel of SUVs. The Kona EV, for example, feels less hefty than this little hatch.

Regardless, the electric motor dispatches with the Ioniq's weight easily when you really want to accelerate, and while it doesn't provide the hold-on-for-dear-life acceleration of Teslas, it's more than enough for a daily commuter. Unlike the Prius, the Ioniq does genuinely feel pretty sporty in the corners, thanks to steering that's on the heavier side, and a firm, responsive damper tune.

The regenerative braking is particularly good on the Ioniq. Using paddle-shifters usually reserved for changing gears, the Ioniq instead lets you  alter the amount of regenerative braking available. Feel like coasting a bit faster? Flick the Regen braking off. Feel like maximising economy and range? Max it out in the drive mode of your choosing, and you can use it as essentially a ‘single pedal' car (you can go or stop by using the throttle alone).

It even has an auto mode, which I found to be pretty intuitive. Paired with a few different display options to let you get superior feedback on how you're tracking with battery usage, it's brilliant, and more electric vehicles should take note.

So, this is an eco-focused electric car that is reasonably engaging to drive if a little heavy. Most importantly for the electric era, it's highly interactive, helping you really understand how your inputs are affecting its battery usage, and how you can better drive it to maximise range.

The Ioniq electric comes with the full suite of Hyundai SmartSense safety features, with active items including freeway-speed auto emergency braking (detects vehicles up to 180km/h, detects pedestrians up to 70km/h), lane-keep assist with lane-departure warning, blind-spot monitoring with rear cross traffic alert, adaptive cruise control, driver-attention alert, and auto high-beam assist.

This is backed by the usual stability, brake, and traction systems, as well as seven airbags (the standard dual front, side, and head array, plus a driver's knee) securing the Ioniq a maximum five star ANCAP safety rating dating back to its launch in 2018. It scored highly across all categories.

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.

Hyundais are all covered by a competitive five-year and unlimited-kilometre warranty, which includes 12 months of roadside assist. The roadside assist is topped up for an additional 12 months with every genuine service, and the battery pack in EV models like the Ioniq is covered for eight years or 160,000km.

Hyundai's service pricing is amongst the best in the business, and with less moving parts, the electric Ioniq is the cheapest in the range with the first five services for the life of the warranty fixed at just $160 per 12 monthly or 15,000km interval.