Audi Q5 vs Toyota Prius

What's the difference?

It might be a late return to the PHEV game for Audi, but it’s an impressive one. Everything great about the Q5 remains - dynamically engaging, responsive powertrain - but you get the added benefit of electric power.

This could be the car to prove that plug-in hybrid medium SUVs don’t have to be bland family transport. If the Q5 is anything to go by, going green can be downright fun!

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and 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.

The second-generation Q5 has been around for six years, and it was very much an evolution of the original, but it still looks attractive in the metal. You couldn’t call it edgy, but it is handsome.

Both PHEV body styles get the S line exterior package as standard, which adds a unique honeycomb grille, S line bumpers front and rear, Audi Sport wheels and it borrows the rear spoiler from the SQ5.

While many will favour the swoopy Sportback body style, I think the Q5 is at its most arresting in SUV body style, bathed in the gorgeous 'District Green Metallic' paint. Stunning.

Inside, only the Sportback gains the S line interior, which includes a leather three-spoke steering wheel with multifunction, shift paddles and hands-on detection, Nappa leather upholstery with contrast stitching, and aluminium inlays. The SUV seats are leather-appointed. 

It’s fair to say Audi’s interiors have modernised since the launch of this Q5 in 2017, but it’s still hard to fault. The multimedia screen jutting out the top of the dash is a little old school these days, but the materials and quality are top notch.

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.

As - predominantly - a family hauler, the Q5 has always done well in the practicality stakes. And adding a plug-in hybrid powertrain hasn’t changed that. Although you do lose some boot space compared with the petrol models - but more on that in a bit.

Up front, the Q5 has plenty of nooks and storage slots in the console, including a longer shallow slot to hold phones. The central bin is deep enough and the door bins can swallow big bottles and more. Housing the phone charger on the top of another storage spot in the console works as it can be hidden by the larger storage lid for security.

As the Q5 is older than some of Audi’s fresher models, there are physical buttons for things like air conditioning, seat heaters, and controls for drive modes and other vehicle functions.

It might not look as schmick as having a screen to house everything, but from a practicality and safety perspective, it’s welcome.

This approach also extends to the multimedia system which is fairly simple to navigate with a logical menu. Audi’s system gets a tick, as does the digital cockpit - something the brand pioneered.

While the leather appointed seats in the SUV are nice, the quilted Nappa leather seats in the Sportback are much more luxurious. And the ‘Rotor Grey’ colour scheme is simply beautiful. They offer more than enough support in the front row and they are comfy without being super plush.

There’s ample leg and headroom in the front row.

That is the same for the second row. So much headroom even with a panoramic sunroof. And behind my 183cm (six foot) driving position, there was room to spare in front of my knees. It’s such a good size.

Also, the rear seats have some bucketing so passengers will feel a little spoiled. There’s also knee-level air vents, map pockets, two USBs and a 12-volt port, a fold-down armrest with cupholders and ISOFIX points on the outboard seats.

The rear row folds 60/40 and there’s decent room in the boot, which has a power operated tailgate. 

Given some of the PHEV hardware sits directly under the boot floor, it’s little surprise that the SUV version (465 litres) loses 55L of space compared with the petrol-powered 45 TFSI.

Similarly, the Sportback (455L) drops by 45L. Also, despite the swoopy roofline, the Sportback only loses 10L of cargo space compared with the more practical looking SUV.

Those PHEV bits also mean there is no spare wheel - only a tyre repair kit.

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 Q5 pairs a 2.0-litre four-cylinder turbo-petrol engine - found in many VW Group products - with a plug-in hybrid set-up that includes a lithium-ion battery pack and an electric motor.

The total system output is 270kW of power and 500Nm of torque, which is impressive. In fact, it has more power - but a little less torque - than the SQ5 performance flagship. 

It drives all four wheels thanks to Audi’s quattro all-wheel drive system, and does that via a seven-speed dual-clutch automatic.

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 PHEV’s battery capacity is 17.9kWh and that ensures the Q5 has an electric driving range of up to 55 kilometres on the WLTP protocol. 

Audi says the average daily commute of an Australian is 35km, so technically many people could get to work and back using electric power only.

It might not sound like a huge amount, but it’s more than the 41km offered by the BMW X3, although it doesn’t come near the Lexus NX’s 87km claim.

Energy consumption is rated at 23.9kWh/100km, and the official fuel consumption figure for the Q5 is 2.0 litres per 100km - bettering the X3’s 3.2L/100km figure but not as frugal as the Lexus (1.3L).

It has a 54-litre fuel tank and emits 45 grams per kilometre of CO2.

The Q5 PHEV has a Type 2 plug and comes with a charger to add more juice at home.

It has an AC charging capacity of 7.2kW and it will take two and a half hours to fully charge using a home wallbox charger. You can also plug it into a regular wall socket at home and it’ll be charged up in about eight hours, or overnight. It's not capable of DC charging.

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 Q5 has always been the driver’s pick among its peers - specifically the BMW X3 and Mercedes-Benz GLC. You could argue a Porsche Macan is more engaging and you’d probably be right. But of those immediate German rivals, the Q5 takes the cake.

Adding a PHEV powertrain and the circa-300kg of extra weight that brings should impact dynamics - but somehow, it doesn’t. 

First of all, the Q5 PHEV can do the 0-100km/h dash in just 5.3 seconds which is hot hatch territory. 

But the really impressive thing about this Q5 is how well it handles, despite that extra weight. The battery pack is housed under the boot floor, and Audi engineers have done a bang up job in ensuring it retains that dynamic prowess it's known for. 

We drove on some delightfully twisty roads in the Gold Coast hinterland for this launch event, and the Q5 didn’t miss a beat.

It maintained composure when pushed into tight corners, and had plenty of grip. And the electric urge coming out of those corners - providing you have battery charge left - only helps the experience.

Typically sharp Audi steering is indeed present and welcome.

Riding on 20-inch Audi Sport alloy wheels, and with a sporty bent, you’d think the ride quality would be impacted. But that was another pleasant surprise.

The Q5 soaks up corrugations with the standard suspension set-up, and the tyres have a decent sidewall. So no unpleasant sharp bumps detected.

The cabin is reasonably well insulated from most outside intrusion as well.

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 Q5 comes with Audi’s five-year/unlimited kilometre warranty. This was an increase on its previous term that Audi announced at the start of 2022. The PHEV is also covered by an eight-year/160,00km battery warranty.

Service intervals are every 12 months or 15,000km, whichever comes first, and Audi offers a capped-price service plan for five years that costs about $3500 all up. That’s a little pricer than BMW and Volvo’s plan.

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.