Audi S6 vs Citroen C5 Aircross

What's the difference?

We adore the new S6 sedan. It looks great, feels comfortable and goes like stink all at the same time. What’s not to like?

It also helps that it is relatively good value, safe and practical by large-sedan standards, so it’s a bit of a no-brainer.

But will buyers be quick to dismiss the new S6 sedan because it’s not a more practical SUV? Time will tell, but we hope not.

Does the new Audi S6 sedan represent the best mix of executive style and boy-racer performance? Tell us what you think in the comments below.

So, what did my family think about the Citroen C5 Aircross Sport?

I love how it looks and its updated safety list. It’s fairly spacious inside and has a great boot space but it’s lacking a lot of family-orientated practicality in the back seat. The lack of individual storage and amenities is noticeable when you have a kid or two but even as an adult, not having a cupholder for your coffee/drink on a trip feels odd.

The multimedia system and reversing camera need to be improved, too. Overall, it will suit a small family which is out of the baby stage but can’t yet justify upgrading to a larger SUV. It gets a 6.5/10 from my family. 

To these eyes, the new S6 sedan is very attractive, albeit not outlandish, in keeping with its executive focus.

Up front, the subtly aggressive S body kit immediately comes into frame, with the bumper sporting sinister-looking side air intakes.

And, of course, there’s Audi’s signature Singleframe, which is not only large and in charge, but also finished in gloss-black, like many of the S6 sedan’s exterior design elements.

Below the heavily creased bonnet, the HD Matrix LED headlights look both angry and sophisticated, with their integrated LED daytime running lights (DRLs) providing a crisp signature.

Around the side, the S6 sedan goes about its business quietly, but its blistered wheelarches do add some bulk and help to accentuate its strong shoulder line.

And then there are the thick skirts and 21-inch alloy wheels (with a space-saver spare), which have a sporty twin five-spoke design. It’s all very classy.

Speaking of which, the rear end is arguably the S6 sedan’s best angle thanks to its wicked LED tail-lights, which have a segmented signature.

The chunky bumper below incorporates a diffuser element that houses the quad exhaust tailpipes, while a blink-and-you’ll-miss-it bootlid spoiler rounds out the look.

Inside, the S6 sedan is a technological tour de force, with 10.1- and 8.6-inch touchscreens dominating its centre stack. The former is responsible for most of Audi’s latest multimedia system’s functions, while the latter takes care of the climate controls.

This set-up works pretty well, although a few too many taps are required for certain functions, and then there’s the issue of the glass display coverings, which are absolute fingerprint magnets alongside the gloss-black accents used throughout.

That said, the 12.3-inch digital instrument cluster and windshield-projected head-up display on hand are brilliant. In fact, they set the standard for the entire industry thanks to their design and breadth of functionality.

The S6 sedan does, of course, feel a little bit more special than the regular A6 inside, with the obvious additions being the front sports seats, which are covered in supple Valcona leather alongside the armrests. They even have diamond-stitched inserts.

Then there’s the obligatory flat-bottom steering wheel (with paddle-shifters), which is trimmed in Nappa leather alongside the gear selector, upper dashboard, door shoulders and knee rests. Indeed, hard plastics are hard to find here.

Meanwhile, a black headliner adds to the sportiness alongside the black Alcantara door inserts, but the cabin is otherwise a familiar (read: classy) affair.

The facelifted model sees a sportier front with the grille redesigned to highlight the double chevron badge.

The bonnet curves around the badge, as do the two long LED strip lights that connect the headlights. The bonnet also sports new divots that give it a gruffer edge.

The wide profile at the rear and new three-pronged tail-lights create some interest.

The black plastic moulding that runs along the base of the car could look unfashionable on a lighter colour but on our blue paintwork, it looks good. As does the contrasting black roof!

The interior trims are finished in a combination of synthetic and Nappa leather but boast a two-tone colour which might not land with everyone. Particularly given the navy portions seem to be glittery in certain lights.

Sitting at 1859mm wide, 1695mm high and just 4500mm long, the overall exterior design is sporty but cute. It should appeal to those who want a nice-but-not-loud-looking car and something that is easy to park.

Measuring 4954mm long, 1886mm wide and 1446mm tall, the new S6 sedan is a large sedan in every sense of the term, which is mostly good news when it comes to practicality.

Cargo capacity is decent, at 520L, but can be increased to an undisclosed amount with the 40/20/40 split-fold rear bench stowed.

Speaking of the boot, there are four tie-down points and a cargo net to help secure loose loads, while a bag hook and a side storage net are also on hand, alongside a 12V power outlet. Bulkier items will, however, be confronted by a decent load lip.

In-cabin storage options are numerous, but not all are effective. The glovebox is well-sized, while the driver-side cubby is surprisingly large, but the central bin is shallow, mostly taken up by the wireless smartphone charger, two USB-A ports and the SD and SIM card readers.

A pair of cupholders is located in the centre console, with a 12V power outlet found in between, while the front door bins can accommodate one regular bottle each, just like their rear counterparts.

In the second row, there’s a fold-down armrest with two more cupholders as well as a shallow storage tray, while cargo nets are affixed to the front seat backrests.

The rear bench is pretty comfortable, with four inches of legroom available behind my 184cm driving position alongside decent toe-room. Headroom is also good, with about two inches on offer.

That said, three adults sitting abreast won’t enjoy the experience, due to the large transmission tunnel, which makes for limited footwell space. At least they’ll have access to a couple of USB-A ports and a 12V power outlet, below the central air vents.

For reference, child seats can be fitted to the outboard seats via top-tether and ISOFIX anchorage points.

The interior is spacious for a medium SUV but the back seat knocks off some points for family practicality. So, let’s start in the back.

Despite there being plenty of headspace for my 168cm (5’6’’) height, the legroom is cosy behind my driving position.

Meaning a 0-4 rearward facing child seat will encroach on front passenger space. It’s probably best suited to a family which is out of the baby stages but it was cumbersome fitting my big harnessed-booster seat in there, too.

It has ISOFIX child seat mounts on the outboard rear seats and three top tethers but two seats will fit best. The floor is flat, which offers far more comfort for a middle seat passenger and I love how the seats can be individually shifted.

The amenities and storage in this row are sparse. You get directional air vents, reading lights, netted map pockets and shallow storage bins in the doors.

Siblings may squabble over the single USB-A port on a long road trip but more than that, there are no cupholders or drink bottle holders back there or even a centre armrest.

That said, the 182mm ground clearance made it an easy car for my six-year-old to get in and out of; plus, the stadium-like seating and wide windows meant he had an awesome view this week.

Now for the front. It has ample amenities, storage and tech. You get plenty of head- and legroom, plus with the panoramic sunroof the cabin manages to feel airy, too.

Individual storage is great with an extra deep middle console, glove box, two cupholders, bins in each door and two very handy utility trays situated near the toggle-type shifter.

Charging options are much better up front, too, and you can choose between a wireless charging pad, two USB-A ports and a 12-volt socket to charge your device.

It's super easy to connect to the wired Apple CarPlay and there’s wired Android Auto for those users.

The built-in satellite navigation is straightforward but that’s where the simplicity ends. I did not find the multimedia system or the digital instrument panel to be terribly intuitive to use and the touchscreen controls can be laggy.

I’m sure you could get used to it over time but I felt flustered.

For this size SUV, the boot space is great at 580L with all seats in use but you can bump it up to 1630L if you fold the back row.

The floor can be adjusted to make a level load space or dropped to give you greater depth for bulkier items and there is a temporary spare tyre underneath the floor.

There are luggage tie-down anchors, a cargo blind and I always like having a powered tailgate. 

There is only one model for the C5 Aircross Sport and it will set you back $54,990, before on-road costs.

That prices it as the most expensive compared to its rivals with the Mazda CX-5 GT SP ($51,810) coming in closest but the Nissan X-Trail ST-L ($46,790) and the Kia Sportage SX+ ($41,850) are even more affordable.

The only included paint colours are 'Polar White' and 'Nera Black'. Our model’s 'Eclipse Blue' will add on $690.

However, the C5’s price tag doesn’t feel too cheeky because of the feature-heavy specification, including heated front seats, electric driver’s seat with massage function, a panoramic sunroof and a mix of premium Nappa leather and synthetic leather interior trim.

You also get a powered tailgate, rear privacy glass tinting, full LED lights on the exterior, individually sliding seats on the back row and black 19-inch alloy wheels.

The technology has been upgraded with the dashboard being headlined by a 10-inch touchscreen multimedia system and a 12.3-inch digital instrument panel.

Built-in satellite navigation, as well as wired Apple CarPlay and Android Auto are also included as standard equipment.

On top of that, the safety list has been significantly improved, but more on that later. 

The new S6 sedan is powered by a hard-hitting 2.9-litre twin-turbo V6 petrol engine that produces a strong 331kW of power from 5700-6700rpm and a punchy 600Nm of torque from 1900-5000rpm.

Compared to its aforementioned predecessor, power is unchanged, while torque has increased by 50Nm.

This unit is mated to a 48V mild-hybrid system that includes a trick Electric-Powered Compressor (EPC), which helps to reduce its turbo lag.

A reliable eight-speed torque-converter automatic transmission is responsible for swapping gears, while drive is sent to all four wheels via Audi’s rear-biased quattro system.

This combination helps it sprint from a standstill to 100km/h in an impressive 4.5 seconds, while its top speed is electronically limited to 250km/h.

The C5 Aircross Sport has a 1.6-litre, four-cylinder turbo-petrol engine with a maximum power output of 133kW and 250Nm of torque. It’s not super grunty but there’s plenty here to keep you up to speed on the open road.

It is a front-wheel drive and has an eight-speed auto transmission but the gear changes can feel a bit jerky at lower speeds.

The new S6 sedan’s fuel consumption on the combined-cycle test (ADR 81/02) is 8.4 litres per 100 kilometres, while claimed carbon dioxide emissions are 197 grams per kilometre. Both figures are pretty keen given the level of performance on offer.

Audi says the aforementioned 48V mild-hybrid system reduces fuel consumption by 0.4L/100km thanks to its coasting ability, which sees the engine turn off for up to 40 seconds between 55km/h and 160km/h. It also engages idle-stop from 22km/h.

In our real-world testing, we averaged 14.4L/100km over 100km of driving skewed towards country roads over city traffic, with limited highway time. It’s worth noting that my spirited driving inflated this result. That said, while its fuel consumption is not as bad as it appears, this is still a thirsty sedan.

For reference, the S6 sedan’s 73L fuel tank takes 98RON petrol at minimum.

Ah, this is where it earns back some points!

I was very impressed by the efficiency of this because the official combined cycle fuel figure is 5.7L/100km and my real-world usage came to 6.2L! That’s fantastic for this sized SUV and for a turbo.

With a fuel tank of 53L and based on the combined fuel figure, you should be able to get a driving range of around 930km, which is good for those families who like to do road trips.

The S6 sedan has no right being this good in a straight line and around corners…

Much of its success is owed to the 2.9-litre twin-turbo V6, which is now one of my favourite engines being built today. Simply put, it absolutely hammers.

Punch the accelerator from a standing start and it doesn’t take long for 600Nm to be on tap all the way through, and just a little bit beyond, the mid-range.

Occupants are firmly pressed into their seats as the S6 sedan sprints towards the horizon with vigour. Soon enough, 331kW arrives and hangs around until just prior to the redline.

Needless to say, this acceleration is addictive, and the EPC deserves some of the credit, as it effectively mitigates any dreaded turbo lag and ensures the engine is always seemingly on boost.

But we also need to acknowledge the eight-speed torque-converter automatic, which is a real beauty. Gear changes are nice and smooth, which is great, but what’s even better is their relative quickness – dual-clutch transmissions be damned!

Of course, extra performance can be extracted by switching between the engine and transmissions’ settings but, rest assured, they both stand up, no matter what.

However, we’d suggest spending time in the former’s most aggressive setting, as it unleashes the sports exhaust system, which sounds unreal.

Upshift with intent and you’re met with a booming ‘brap’. Downshifts and the overrun will even gift you a series of pops. In fact, the S6 sedan soundtrack sounds strangely similar to that of the five-cylinder RS3, and we have absolutely no problem with that.

Better yet, the S6 sedan has an appetite for corners, with its neutral handling a standout, partly thanks to its hard-working rear-biased quattro all-wheel-drive system, which works in tandem with all the other electronics to ensure there is plenty of grip at any given time.

This controlled driving pleasure is enhanced by the electric power steering on hand, which has a variable ratio. At low speed, it’s nice and light, but those after more heft can always switch to another one of its settings, which become progressively heavier… arguably too heavy.

Feedback through the wheel is also good, while the steering itself is pretty direct, lending itself to sporty driving, which, of course, is half of the S6 sedan’s mantra.

Coming into corners, braking performance is solid, thanks to the massive 400mm front and 350mm rear discs with red callipers, so the driver is brimming with confidence at every turn, even though there’s an unladen weight (with 75kg driver and luggage) of 1985kg to manage.

But let’s not forget the S6 is an executive sedan, so it has to ride like one. Thankfully, it does. The independent five-link suspension has air springs and adaptive dampers, which serve up comfort in spades, especially at high speed.

Its firm tune does come into frame when travelling on unsealed or uneven roads, with this exacerbated by the large 21-inch alloy wheels, which have a penchant for catching sharp edges.

Despite its city-friendly size, the C5 Aircross Sport is just as happy cruising on the open-road as it is in an urban environment.

The ride is smooth enough once you get up to a steady speed but the suspension can feel harsh on a bumpy road.

Also, the auto stop-start function can make it feel sluggish to respond, so I disabled this on most trips.

There is plenty of power so you'll feel confident overtaking or getting up to speed on the open road. However, you have to be a little more aggressive with the accelerator when you’re hitting hills.

The steering can, at times, feel vague when you’re at lower speeds but is otherwise responsive.

The cabin space is quiet and nice to be in on the highway and you’ll be able to chat with your passengers with ease.

What I like most about this though is the visibility – the windows are large and I feel like I have a clear view most of the time, which isn’t always the case in an SUV.

Parking this is a cinch with entry to tight car parks helped by a 10.7m turning circle!

However, the 180-degree view camera isn’t great and near hopeless at night time. A clearer image would be welcome but front and rear parking sensors ease the annoyance.

The updated safety list is most welcomed, especially on a family SUV.

The C5 Aircross Sport has the following as standard - daytime running lights, forward collision alert, lane keeping aid, lane departure alert, blind-spot monitoring, rear cross-traffic alert, intelligent seat belt reminders, traffic sign recognition, 180-degree view reversing camera, front and rear parking sensors and adaptive cruise control with stop and go function.

Special mention for the new fatigue detection alert. When it triggers it doesn’t stop sounding until both of the driver's hands are detected on the steering wheel.

The autonomous emergency braking with car, pedestrian and cyclist detection is operational from 10 – 80km/h (5.0 -140km/h for car detection), however the pedestrian and cyclist functions are only detectable in the day time. It’s usual to see it operational at night, as well.

Despite the new safety items, it still only has six airbags, which includes curtain airbags covering both rows but that’s pretty low for a family car nowadays.  

It was awarded four from a maximum five-star ANCAP safety rating back in 2019 but didn’t have all of the new items at the time of testing.  

The S6 sedan comes with Audi Australia’s three-year/unlimited-kilometre warranty, which falls short of the premium market’s relatively new five-year standard that was set by Genesis and followed by Mercedes-Benz.

Three years of roadside assistance is also bundled in, although this term can be extended up to nine years if the vehicle is serviced at an authorised dealership, which is great.

Speaking of which, service intervals are every 12 months or 15,000km, whichever comes first. Capped-price servicing plans are available, costing $2350 for three years/45,000km or $4110 for five years/75,000km. They’re pricey, but you weren’t expecting the opposite.

The on-going costs are super-reasonable on the C5 Aircross Sport, with a five-year/unlimited km warranty included.

You can also choose to pre-purchase a three- or five-year capped-priced servicing plan, both significantly cheaper than the pay-as-you-go option. 

On the three-year plan, services are $1100 or an annual average of $366.

It’s a flat $2000 for the five-year plan, (averaging just $400 per service), which is very competitive for the class.

Servicing intervals are every 12 months or 15,000km, whichever occurs first.

The Aircross also comes with a five-year roadside assistance plan that is offered through Digicall Assist, for added peace-of-mind.