Holden Acadia vs Audi S5

What's the difference?

The Holden Acadia is a proper seven-seater SUV in that it will fit adults in the third row without turning your friends into enemies. It’s also practical and well fitted out with storage places and utilities such as USB ports.

I was particularly impressed with the advanced safety equipment on-board even at this entry LT level. Yes, it’s a V6 petrol and it’s not the most fuel-efficient SUV, but our time with it showed that with cylinder deactivation and the stop-start system it might not be as thirsty as you’d think.

The Audi A5 remains a convincing option in the premium mid-size sedan category, even with the near-$10K price increase over its equivalent grade A4 predecessor.

Even in its base spec, it’s a lovely thing to drive and adds enough new kit to be a reasonable option when it comes to value. In terms of tech usability, it stands out from rivals. Practicality is still king for Audi.

But for the heart-over-head types, the S5 is fast and fun while remaining a comfortable cruiser and the price is decent. On a personal note, a six-cylinder wagon? That's a big yes from me.

For the time it’s available, it’s hard to go past the value on offer in the S5 Edition One. Getting an AWD V6 with that kind of capability for under $100K is something that's sure to tempt buyers. If it doesn’t, we need to take a good look at ourselves.

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

To fully understand the look of the Acadia, take a peek at the GMC website - but make sure you shield your eyes in the same way you would during a solar eclipse, or when welding, or in an atomic blast.

You’ll understand when you get there but suffice it to say contained within the site are some pretty confronting trucks and SUVs. Once you’ve recovered, you’ll realise the Acadia is the supermodel of the GMC family.

Yep, it has a big, blocky, truck-like look but it’s a refreshingly tough styling alternative to more elegant looking SUVs such as the Mazda CX-9.

The Acadia is also one of the smallest members of the GMC family, yet its dimensions position it as a large SUV in Australia. Even then it’s not huge compared to other large SUVs here, so you won’t have an issue piloting it in Aussie car parks or fitting into spaces.

The Acadia measures 4979mm end-to-end, 2139mm across (with the mirrors out) and 1762mm tall.

Along with the Mazda CX-9 the Acadia would also consider the Kia Sorento and Nissan Pathfinder to be among its rivals.

Inside, the Acadia is a modern and stylish looking place, although it’s a bit unrefined. Still, as one YouTube commenter reminded me parents will like the wipe clean surfaces.

Well her comment wasn’t written that politely but being a parent, I concur that the hard plastics have that advantage.

The interior is not all unrefined. The seats, even in the entry grade LT we tested, while cloth (and only available in Jet Black) are sculptured with bolsters and finished with a textured pattern that looks and feels great.

The A5 incorporates Audi’s new design language in a way that makes the 2026 model stand out from Audi’s older offerings, but we won’t know how well it works in the family until more new-gen Audi cars arrive.

For now, the A5 is a generally handsome car. It very much looks like an Audi from the front, even a recent A4 if you only very quickly glanced.

The aforementioned S line styling does plenty in making even the base Audi A5 look like a properly luxe thing. There were a few double-checks at the launch to make sure drivers were getting into the right cars.

Fortunately the new car’s designers refrained from busying up the car with trim, the only big features being the side vents at the front.

But even in Avant form the S5 looks athletic, quad-exhausts in the lower bar and the angular rear bodywork moving away from the previously softer, more rounded look Audi had gone with before.

Inside, the changes are arguably more obvious. The A5 is now much more ‘screeny’ than before, especially if optioned with the passenger-side touchscreen.

It’s still decidedly Audi in its layout and design, with geometric shapes on the steering wheel, screen housing, door cards and even on the gear shifter, which is no longer the more traditional handle-type.

The Acadia’s practicality game is strong. It boasts seven seats with third row positions actually able to fit adults, five USB ports sprinkled through the cabin, and a cargo capacity of 1042 litres with the third-row seats folded flat and 292 litres with them in place. If you have three kids, even teenagers, the Acadia could be the perfect family personnel carrier for you.

All three rows are spacious and even at 191cm tall I had good shoulder and elbow room up front, and in the second and third rows I had enough legroom to sit in each seat behind my seating position without feeling cramped.

Feeling a bit down because you might not be able to stretch the budget to get the LTZ-V? Well, cheer up – the LT has more headroom and that’s because it doesn’t get the sunroof which eats into the ceiling height.

Cabin storage is excellent. There’s a wide and deep centre console bin, a hidey hole in front of the shifter, a tray for second row passengers, six cup holders (two in each row) and decent-sized door pockets.

Directional air vents for everybody on board, three-zone climate control, two 12-volt power outlets, privacy glass and proximity unlocking complete a great practicality package.

…and that gear selector is a bit indicative of the new A5’s interior. It’s now more of a switch that requires a little more attention than the traditional shifter, just like the way the more screen-focused interior requires a little more of your eyeball time than physical buttons.

Don’t get me wrong, as far as screens in modern cars go, Audi seems to have made it as easy as possible to use the new-gen software in the A5. The menus are clear, there are good shortcuts and there’s no lag… but buttons are always better when your focus needs to be on the road.

Fortunately the driver display is nice and clear, it’s a good update on Audi’s ‘Virtual Cockpit’ and you can set it to display important information without looking too busy.

Ergonomically, the way the central screen is angled towards the driver, the centre console layout and the small control panel on the door for lights, mirrors and the like all seem to be well considered and mean you don’t have to awkwardly reach for anything.

There are a few quirks specific to the A5 and S5, one being that if you opt for the panoramic sunroof, it comes with a transparency switch rather than a physical cover, so it doesn’t do much to keep the light out.

It’s also good to note that the passenger screen - again, if optioned - turns to privacy mode when playing media so as to not distract the driver. Pretty handy!

Behind the front row, a regular-sized adult should have enough room to sit comfortably for a decent amount of time without feeling cramped. The light through the sunroof comes in handy here.

Behind that is a 445L boot in Sedan form, or 1299L with the rear seats folded down. As an Avant, the space increases to 448L and 1396L respectively.

The new Audi A5 range starts from $79,900 before on-road costs for the standard A5 Sedan, though the rest of the models available at launch are all S5 variants. A more powerful A5 with 200kW and quattro all-wheel drive will come later, as well as a 270kW plug-in hybrid A5 quattro variant.

For now, the sole A5 in the line-up is well equipped for the price, coming with standard 19-inch alloy wheels, matrix LED headlights with adjustable lighting signatures, keyless entry and digital key via Audi’s app, electric bootlid (or tailgate, given its liftback style) and S line styling as standard.

Interior features include sports seats in real and synthetic leather, heated and electrically adjustable up front, leather steering wheel, tri-zone climate control, a 14.5-inch OLED multimedia touchscreen and 11.9-inch driver display, wireless phone charging as well as wireless Android Auto and Apple CarPlay.

The A5 can be optioned with a Style pack for $3000 which adds 20-inch wheels, tinted glass and black exterior trim. There’s also a Premium pack for $3769 which adds a head-up display, high-power USB ports, a Bang & Olufsen sound system, ambient lighting and front door acoustic window glazing.

The other key variants in the line-up from launch are the S5 Sedan and S5 Avant, coming in at $114,900 and $117,900 respectively. Aside from the more advanced drivetrains, the S5s also gain plenty more features over the A5 including 20-inch Audi Sport alloy wheels, selectable OLED rear lights, tinted windows and more paint colour options.

Inside, Nappa leather-upholstered seats gain cooling and massage functions up front, the steering wheel is heated, and there’s ambient lighting with a ‘dynamic interaction light strip’ that changes colour based on vehicle functions like indicating or changing temperatures.

There’s also a head-up display, high-power USB outlets, a Bang & Olufsen sound system and, perhaps most notably, a 10.9-inch touchscreen for the front passenger as standard. It’s a $1500 option in the A5.

Audi also has a launch variant of the S5, the Edition One, which comes at a lower price and a trim spec closer to the A5, but with the S5’s performance. It has non-adjustable sport suspension, for example, and to score much of the main S5’s kit requires cost-options or option packs.

But the prices are tempting, just $99,900 for the S5 Edition One Sedan or $102,900 for the Avant, $15,000 less than their same-power siblings. For an extra $6000, you can add a head-up display, high-power USB ports and the Bang & Olufsen sound system to the Edition One.

Comparing the entry A5 to the recent entry-level A4, the new A5 wears a price increase of $8000 (the ageing A4 is $71,900), but has more power and a much more modern interior. On price alone it seems a steep jump, but the value is still there compared to rivals. A Mercedes C200 currently starts from $89,900, while a BMW 330i is $92,900.

All Acadias come with a 3.6-litre V6 petrol engine which makes big dollops of power and torque or 231kW (at 6600rpm) and 367Nm (at 5000rpm).

A nine-speed automatic swaps gears, and in the case of our two-wheel drive LT test car the drive went to the front wheels only.

The V6 gets the thumbs up for its stop-start fuel saving system and cylinder deactivation, plus good acceleration and the smooth power delivery you’d associate with a naturally aspirated engine, but a thumbs down for needing to rev hard to make that mumbo.

The Audi A5 is powered by a four-cylinder turbo-petrol engine which powers the front wheels via a seven-speed dual-clutch automatic transmission. It makes 150kW of power and 340Nm of torque, and should, Audi says, propel the A5 to 100km/h in 7.8 seconds before (eventually) reaching a top speed of 248km/h.

The S5, in all its variants, is powered by a 3.0-litre turbo-petrol V6 which is assisted by a mild hybrid system. It produces 270kW and 550Nm, sending that to all four wheels via a similar seven-speed dual-clutch.

The S5 is much quicker as a result - 100km/h comes along in just 4.5 seconds according to Audi, before reaching a 250km/h top speed.

We were surprised by the Acadia’s fuel efficiency. After filling up the tank I drove for 136.9km on a combination of hilly country roads and peak hour evening city traffic and then filled up again – only 13.98 litres were used. That’s a mileage of 10.2L/100km. The official combined consumption figure is 8.9L/100km.

So, while the engine is big and not particularly new (it’s an evolution of the V6 built by Holden in Australia for the Commodore) it does have fuel-saving tech like cylinder deactivation and a stop-start system – which you can’t switch off.

Still, not the most fuel-efficient seven-seater – those with turbos and smaller capacity engines such as Mazda CX-9 are truly amazing in the way they can deliver grunt without getting thirsty.

Audi claims the A5 uses 6.9 litres of fuel per 100km, which should theoretically deplete the 56-litre fuel tank after 811km of driving. We couldn’t test this on the launch, but reaching claimed fuel efficiency figures remains an elusive challenge.

The S5, according to Audi, comes with an impressive 7.1L/100km figure in Sedan form, or 7.2L/100km as an Avant. That’s 788km and 777km of theoretical driving range if you’re up for a challenge.

I drove the Holden Acadia back-to-back with the Nissan Pathfinder – you can watch the model comparison in the video above, but the upshot of that experience was important.

See, while I wasn’t a major fan of the Acadia driving experience when I first met the SUV at its Australian launch in 2018, when I drove it straight after the Pathfinder the difference was like night and day.

The Acadia is comfortable, from the big seats to the smooth ride. If you’re covering a stack of territory the Acadia makes a great highways cruiser and will chomp up big distances  effortlessly.

That V6 does need to rev hard, but it’s powerful and acceleration is swift, while the nine-speed automatic shifts pretty seamlessly. Noise cancelling tech keeps the cabin fairly serene, too.

Look, it’s not the most dynamic of SUVs and there was a bit of tyre chirp in the corners when pushed, but this isn’t a performance car and nor is it trying to be.

Small windows mean a cooler, tough look, but the downside is a dark cabin and occasionally visibility is limited by the A-pillars or out the rear windows.

A 2000kg braked towing capacity will rule the Acadia out for many thinking of pulling a large caravan or big boat. The Pathfinder’s 2700kg braked towing capacity is a strength of that SUV.

Do you need all-wheel drive? Nope, but it’s handy for dirt and gravel roads. Still the 198mm ground clearance with only front-wheel drive should see you get down bumpy roads that regular sedans couldn’t handle.

One of the first press cars I ever drove as an even younger lad than I am now was the circa-2017 Audi S4.

Without the perspective of all the many, many cars I've since driven, that S4 blew my mind a little bit with its combination of capability and refinement.

Now, with the context of most of the cars available to the Australian buyer in mind, it’s reassuring to get into this new generation and find that the mid-size Audi torch has been gracefully passed on.

Audi says the new generation, sitting on its new platform, has more focus on balanced driving dynamics, steering precision and steering feel. Without sacrificing comfort, Audi wants the A5 to be a sharper driver’s car.

It might not gel with the Euro tradition of a rear-drive executive sedan given the base A5 is front-wheel drive - the brand of course focusing on its quattro all-wheel drive system - but the A5 is decidedly agile for its size. 

Compared to the S5 especially, as the A5’S 1770kg plays the S5’s 2025kg in Sedan form (2040kg as an Avant). It’s a noticeable weight difference, and it makes the A5 more playful without getting properly ragged.

It also rides on smaller 19-inch wheels and would overall probably make for the better daily driver. Even without the all-wheel-drive traction and extra power the S5 offers, the A5 makes a good case for properly plush commuting. Its 150kW isn’t lacking by any means, and that 340Nm does plenty to help when overtaking.

Its suspension feels well damped, keeping the road’s imperfections out of the cabin without numbing the ride and leaving you without feedback. The steering is similarly direct without being too heavy, making the A5 feel athletic for its size.

But for all the A5’s strengths, there is something undeniable about a six-cylinder European sedan (or wagon). The S5 is heavier, sure, and therefore not as naturally nimble, but it makes up for it. And it’s not just the extra power and mild-hybrid assistance.

It’s a great highway cruiser for a start, but it also adds the confidence of all-wheel drive to a trip, which proved extremely useful on the very rainy winter day we tested it. It holds up well on rough surfaces despite the bigger wheels and extra heft, plus it doesn’t feel out of hand when cornering fast, rolling into a predictable understeer rather than quickly losing traction.

But if you’re in any way conscious of your budget, consider the Edition One. It doesn’t lack any of the key things that make the S5 great, and you get to pocket enough money to buy a second used car.

The A5 and its S5 variants share the same safety features, with the full suite of Audi’s more-than 30 safety and driver assistance systems standard across the line-up.

Physically, the A5 has nine airbags and has been crash-tested by Euro NCAP, the firm awarding it five stars. There's no local ANCAP score as yet.

Some of the key safety features in the A5 and S5 models include a driver attention alert, seatbelt reminders, tyre pressure indicator, adaptive cruise control, lane departure warnings and lane assist, front braking assist, front and rear cross-traffic alert, speed limit sign recognition, surround view cameras and park assist with front and rear parking sensors.

There are also ISOFIX points for fitting child seats to the rear outboard seats.

The Acadia is covered by Holden’s five year/unlimited kilometre warranty.

Servicing is recommended every 12 months or 12,000km. Expect to pay $259 for the first service, $299 for the second, $259 for the third, $359 for the fourth and $359 again for the fifth.

Audi’s five-year/unlimited kilometre warranty is starting to fall behind the industry standard, though is about normal for a premium brand. On top of this, customers can opt to purchase extra years of warranty up to a maximum nine years which costs $3590.

Audi does also offer 12 years of bodywork manufacturing warranty against corrosion or perforation. There’s also five years of Audi roadside assistance.

Servicing intervals for the A5 come in at every 15,000km or 12 months, with customers able to purchase fixed-price servicing plans at a discount compared to paying per service.

A five-year servicing pack for the A5 Sedan is $3360, and for the S5 it’s priced at $3540.