Hyundai Sonata vs Toyota Prius

What's the difference?

The updated Sonata N Line looks beautifully modern from its new face to the refreshed cockpit, while remaining a ‘driver’s car’ with good dynamics, and a sporty engine. 

The Sonata isn’t an ideal family car, however. This is down to a lack of practicality. Although the cabin is fairly roomy, if that roofline wasn’t so coupe-like and cabin storage was better, and the boot had a large hatch opening, and the ride height was more elevated then it would be a great family car. Oh, I’ve just described an SUV.

Note: CarsGuide attended this event as a guest of the manufacturer, with meals provided.

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.

So, we’ve established that the Sonata N Line is a sedan and that means if you’re still reading this you are, a) A Sonata owner looking to trade the old one in for this new one, b) Driving another type of sedan such as a Toyota Camry or Volkswagen Passat and looking to update your trusty steed with one from Hyundai or c) Not in the market for an SUV.

Whatever the reason, sedans lend themselves to being sleek and sophisticated in their styling just by being lower to the ground than SUVs and generally longer than sports cars.

The Sonata N Line is long at 4.91m end-to-end. That’s only 8.0cm shorter than the gigantic Hyundai Palisade which has eight seats. I know… it bends the mind.

This new Sonata N Line looks even wider than the previous version, too, with that broad flat bonnet meeting the Seamless Horizon LED strip.

Fact is the Sonata N Line is 1.86m across - exactly the same as the previous version. Remind me never to wear a 'seamless horizon' T-shirt on days I’m feeling rotund. 

If you look closely at the photos you can see the hidden LED headlights flanking the large, dark and low-set grille.

The rear of the new Sonata looks so different from the previous version, too, with its boot lid spoiler and LED tail-lights. 

The menacing body kit comes with the N Line grade and accentuates the sporty nature of this car. It’s a good thing it has an engine to back up the looks, but more on that later.

Inside, the Sonata has been given the new 12.3-inch curved screens and a digital climate control display, while the steering wheel is new and adorned with the Hyundai 'Morse Code' badge (the letter H is four dots in Morse Code). It’s a premium and modern looking cockpit topped off with suede and leather leather N Line sports seats.

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.

Sedans might be sleek and sophisticated but practicality is not typically their strength because their low height means passenger access isn’t as easy as it is with an SUV, but mainly because the cargo carrying ability is limited by the relatively small boot opening.

Still, the Sonata N Line does have a big 480-litre boot and cabin storage has been improved thanks to the gear shifter being relocated to the steering column and freeing up space in the centre console for stowing items and a wireless phone charger.

Rear legroom is also good. I’m 189cm tall and I can sit behind my driving position with space to spare. Headroom back there is also good thanks to contoured heading which has a ‘carved out’ section for extra space.

Along with the wireless phone charger there are two Type-C USB ports up front and another two for the second row.

There are four cupholders (two up front and two in the second row) and decent sized bottle holders in the doors.

This lack of practicality compared to an SUV or even a station wagon means the Sonata N Line really isn’t the perfect family car.

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.

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.

The Sonata N Line comes with a 2.5-litre turbo-petrol four-cylinder engine making 213kW and 422Nm, which is plenty of oomph, and it all goes to the front wheels through an eight-speed dual-clutch automatic transmission.

So no, there’s not a diesel version nor an all-wheel drive version, but this sporty engine suits the Sonata N Line perfectly.

That said a hybrid variant would be good seeing it’s 2023.

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.

As we were saying above there’s no hybrid variant of the Sonata N Line and there should be. Actually there is, but Hyundai says it isn't available for the Australian market.

So, this turbo-petrol four-cylinder is all we have and according to Hyundai it uses 8.1L/100km on the combined cycle.

When we tested it at the launch our trip computer was reporting exactly 8.1L/100km, but the roads were clear, the traffic was nowhere to be seen, so you can expect that consumption to climb higher if you’re commuting around the city.

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 Sonata N Line’s performance matches its sporty looks. That turbo-petrol engine is responsive and provides great acceleration, the transmission shifts fast and the steering is nicely weighted and accurate. 

Add to this better rigidity in the car’s structure in this updated model and a feeling of stability thanks to this being a sedan with a low centre of mass and you have a dynamic and enjoyable vehicle in your hands.

Sure it doesn't have the sky-high visibility that comes from the pilot’s seat of an SUV, but the Sonata N Line is for those who like to drive but still want the practicality of four doors, back seats and a boot.

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 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 Sonata N Line is covered by Hyundai’s five-year, unlimited-kilometre warranty. 

Servicing is recommended annually or every 10,000km. There’s no capped price serving but you can buy a 'Lifetime' or a five-year plan that work out to be between $350-$400 on average a year. 

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.