Audi A6 vs Citroen C4

What's the difference?

I was thoroughly impressed by the Audi A6 Allroad 45 TDI quattro 2020 model. It is excellent on road, resolved and comfortable on unsealed surfaces, and very well packaged for family touring.

I’d personally have it in a heartbeat over a Q7 or any SUV, for that matter. I can understand why some buyers wouldn’t consider it, but if you’re someone who likes to think outside of the boxy SUV, then be sure to take a look at the Audi A6 Allroad.

It’s weird, wonderful and fun, in more ways that one. I think every segment could use an oddball alternative like the C4. Citroen has successfully transformed it from a hatch to a small SUV with a difference. It’s not going to be for everyone – few Citroens are – but those who are willing to take a chance will be rewarded with a surprisingly competitive little package that stands apart from the crowd.

If this isn’t the best looking genre of car, I must have been blindfolded since birth. You might think differently - be sure to let me know in the comments section below.

But for me, I just love the idea of a station wagon that is beefed up with SUV styling cues, and the Audi Allroad formula has been en pointe for generations now. This latest A6 Allroad doesn’t disappoint, either, with all the elements you’d expect.

Things like the bulging contrasting wheel-arch liners, the rugged underbody protection bash plates, and even the silver roof rails and silver metallic side sill protectors with ‘quattro’ emblazoned upon them - it just all works. 

And being an Audi A6 wagon underneath the glittery bits, it’s a sizeable vehicle. The dimensions read like so: length - 4951mm; wheelbase - 2925mm; width - 1902mm; height - 1458mm, though that depends on the height of the air suspension. 

The A6 Allroad sits about 45 millimetres higher than the standard A6 Avant wagon (not sold in Australia). And the ground clearance also varies depending on the air suspension height setting, but it is officially recorded at 139mm - which isn’t very high at all, but that’s for the regular driving setup. In its raised height, that jumps by 45mm to 184mm. Nowhere near an off-road Toyota, but still high enough to stop the belly from scraping.

And there are other hardware bits to help you out if the going gets tough - out of sight is Audi’s ‘quattro’ all-wheel drive system with a self-locking centre differential that the brand says provides “superior traction and its high level of safety and agile handling”. There is hill descent control, and the infotainment screen can display the location, elevation, compass and driving angles, too.

As for the design of the interior? It’s high-tech Audi opulence and comfort at its best. Check out the interior pictures to see what I mean.

It’s really hard to stand out in Australia’s busy marketplace, especially in this small SUV space, where there doesn’t really seem to be as much of a design rulebook as there is in other segments.

Rooflines are wildly different, as are beltines and light profiles. While some may decry the fall of the hatchback to these more high-riding options, at least some of them are bringing fresh design ideas to the car world.

Our C4 is a great example. An SUV perhaps in profile only, it sports a slinky descending roofline, tall, contoured bonnet, a frowny-face LED profile, and characterful plastic claddings, which are a continuation of Citroen’s ‘Airbump’ elements, which gave cars like the previous-generation C4 Cactus such a unique look.

The rear is this car’s most confronting angle, with a post-modern approach to the light profile, and in reference to C4s past, a spoiler integrated into the rear tailgate.

It looks cool, contemporary, and I think is successful in its aim to blend the sporty elements from the hatch world with the sought-after high-riding elements of an SUV.

It certainly caught a few eyeballs in my time with it, and if nothing else, a bit of attention is something the Citroen brand desperately needs.

In the past you could rely on this brand to give you a funky interior, but one that sadly also came with its fair share of sub-par plastics and strange ergonomic. So I’m pleased to report that the new C4 dips into the better looking and feeling Stellantis parts catalogue for a still interesting yet more coherent experience this time around.

The modern look and feel of this car continues with interesting seat designs, a high-riding dash with a higher degree of digitization than before, and improved ergonomic features (even over some notable Peugeots). We’ll talk more about those in the practicality section, but the C4 feels as weird and different from behind the wheel as you’d hope , with an odd dash profile, a fun and minimalist steering yoke, and attention-to-detail elements, like a detail strip that runs through the door trims and across the seats.

These elements are welcome and help separate this Citroen from its Peugeot siblings. It will need this going forward, as it also now shares much of its switchgear and screens with its sister brand.

This is largely a good thing, with the 10-inch screen looking and feeling good and slotting into this car’s design nicely.

Technical. Practical. Glorious. Three words I’d use to describe the cabin of the Audi A6 Allroad. 

The cockpit isn’t anything out of the ordinary for an Audi of the modern era, and as such it will feel familiar to you if you’ve been in or around any of its more recent stablemates. It also means that you’ll find yourself in a high-end, high-tech and highly pleasant interior. The materials used are beautiful and of a high standard. They look very nice and it is an extremely pleasant place to be. And you can hate on me if you want, but I’m sold on brown leather. Yummo!

It will take some time for you to get to grips with the dual-touchscreen layout of the cabin, but once you get the hang of it, it becomes second nature.

The media screen is very easy to use, the menus are simple to learn, and over my week there were absolutely no issues with Apple CarPlay - either when connected via USB, or when used wirelessly.

The second screen below controls a lot of the main functions of the air conditioning system, and while I’m not a huge fan of using a screen to touch through temperature and fan controls, this one has haptic feedback and is well positioned - it’s not as much of a glance away from the road as in, say, a Land Rover or Range Rover. There’s also a volume knob which is good, and quick buttons for Drive Select and demister for front and rear windscreens.

In terms of the practicalities, there are bottle holders in the doors, a pair of cup holders between the front seats, a covered centre console bin with Qi wireless phone charging (remember not to leave your phone in there!) and there are two USB ports in there, plus a SIM card slot and SD card slot as well.   

The seat comfort is very good - there’s electric adjustment on both seats with lumbar adjustment, and the driver’s seat gets memory settings as well. The electric steering wheel adjust is a nice touch as well, and there’s a remote boot release trigger, too.

There are twin sunroofs, and the front one can tilt and slide while the rear one is fixed. It helps lighten things up a bit if you have the optional dark headlining, which I personally wouldn’t choose.

Rear seat space is excellent. Sitting behind my own 182cm driver’s seat position, I had easily enough legroom, headroom and shoulder room - in fact, the rear pew is so accommodating, it could easily fit three of me across - but foot space is a little tight due to the large transmission tunnel. 

Those in the back are well catered for – there are 2x USB ports, a pair of large door pockets with bottle holders, twin mesh map pockets, a flip down armrest with storage and cupholders, and our car had quad zone climate control (as part of the optional Premium Plus package - standard is three-zone climate), plus there are centrally mounted directional air vents and in the door pillars at face height. Our tester also had those optional manual sunblinds, which would certainly help those in the back get some shut-eye on longer trips. 

The centre section of the rear seat can be split folded down on its own as well – so you have 40:20:40 rear seat folding, which is great for skis or snowboards. Plus there are two ISOFIX child seat attachments and three top-tether points available for baby seats. And one of the most excellent additions to any car ever – illuminated seat belt buckle receivers. It just makes it that much easier to see at night.

If you need to fold down those rear seats, there are boot-mounted triggers. That’ll help expand the luggage capacity from the standard 565 litres (VDA) to an expansive 1680L (VDA). The cargo hold easily fit the three CarsGuide suitcases (124L, 95L and 36L) with room to spare.

There is no Audi Allroad seven seater, though. And that’s potentially where something like a Q7 makes more sense, depending on your intent. 

The C4 brings some interesting practicality elements. There are a few areas where it’s even better than the improved layouts of recent Peugeot models.

The cabin feels spacious, with the C4’s relatively long wheelbase providing ample room in both rows. Adjustability is good for the driver, although it is worth noting that the seats have an odd blend of manual adjust for sliding fore and aft, contrasted with electrical adjust for seat height and tilt.

Comfort is superb from the memory-foam stuffed and thick synthetic-leather-clad seats. I don’t know why more cars don’t adopt this approach to seat design. You sink into these seats and are left feeling like you’re floating above the ground rather than sitting on something. The feeling here is unmatched in the small SUV space.

The massage function is a wholly unnecessary addition, and with the thick seat cladding, it didn’t really add much to the experience.

The seat bases aren’t too high either, unlike some cars in the SUV class, but the dash design itself is very tall, so people shorter than my 182cm height might find extra adjustment is required to see over the bonnet.

There are large bottle holders in each door with a very small bin; dual cupholders in the centre console, and a small armrest console box.

There’s also an odd little two-tiered shelf under the climate unit, with a removable base for extra storage underneath. It seems to me that the top shelf is a missed opportunity to place a wireless charger, although connectivity is handy with the choice of USB-C or USB 2.0 to connect to the wired phone mirroring.

A big win is the presence of a full dial set for not just volume but the climate unit too. This is something the Citroen scores over some of the new Peugeots, which have moved the climate functions to the screen.

Somewhat less wonderful are the digital dash cluster and holographic head-up display. These seem to be a bit redundant in the information they display to the driver, and the digital dash has no customisation, leaving me wondering what the point of it is.

The C4 also has some interesting innovations on the front passenger side. It has an unusually large glovebox and a neat little sliding tray, which looks like something from a Bond car.

It also has a slide-out tablet holder. This odd little thing lets you securely mount a tablet to the dash to provide a multimedia solution for the front passenger, which may be good for entertaining larger kids on longer journeys. Or adults who don't want to talk to the driver. It’s a neat inclusion, but I’m not sure how many people will use it in the real world.

The back seat offers a remarkable amount of room. I’m 182cm tall and had heaps of knee room behind my own driving position. The nice seat trims continue, as does the patternwork and detailing, which is the kind of attention to detail you don’t always get from rivals.

Headroom is a little limited, but you also score dual adjustable air vents and a single USB port.

The boot comes in at a hatch-sized 380-litres (VDA). It’s a neat, square shape with no little cutaways at the sides and is just big enough to fit our full CarsGuide demo luggage set, but leaves no room to spare. The C4 features a space-saver spare wheel under the floor.

In recent memory, Citroen’s offerings (the smaller C3 hatch in particular) have decidedly missed the mark on value. It’s not enough to be a niche player in Australia anymore – we have too many brands for that - so Citroen has had to have a re-think of its pricing strategy.

The resulting C4 that launches in Australia comes in a single, highly specified trim level, at a price that is remarkably competitive for its segment.

Wearing an MSRP of $37,990, the C4 Shine is positioned to compete with rivals like the Subaru XV (2.0i-S $37,290), Toyota C-HR (Koba hybrid - $37,665), and equally funky Mazda MX-30 (G20e Touring - $36,490).

For the asking price you also get the full list of available equipment, including 18-inch alloys, full LED exterior lighting, a 10-inch multimedia touchscreen with wired Apple CarPlay and Android Auto connectivity, built-in navigation, a 5.5-inch digital dash cluster, a head-up display, dual-zone climate, full synthetic leather interior trim, and a top-down parking camera. This leaves only a sunroof ($1490) and metallic paint options (everything but white - $690) as available extras.

The Citroen also packs some unusual items that represent surprising value – the front seats have a massage function and are stuffed with a very nice memory foam material, while the suspension system packs a set of hydraulic dampers to iron out the ride.

While the C4 faces tough competition in the small SUV segment, I think it represents pretty solid value at the price, so long as you’re chasing a virtue like comfort over hybridisation. More on that later.

Under the bonnet of the Audi A6 Allroad is what Audi labels the ‘45 TDI’ - a 3.0-litre turbo-diesel V6 engine that produces 183kW of power (from 2750-4500rpm) and 600Nm of torque (from 1500-3000rpm).

The engine is only available mated to an eight-speed torque-converter automatic transmission and Audi’s renowned ‘quattro’ all-wheel-drive (AWD) system. 

Audi claims this 1980kg wagon can run from 0-100km/h in just 6.5 seconds, on its way to a top speed of 250km/h. It is a hummer of an engine - more on that in the driving section below.

Towing capacity is pegged at 750kg for an unbraked trailer, and maxes out at 2500kg for a braked trailer.

Should Aussies feel short changed when it comes to the engine options here? Arguably, yes - and that’s despite the powertrain offered here still being a stormer. 

There’s only one spec available Down Under, and even it doesn’t get the most up-to-date emissions tech. There isn’t AdBlue urea treatment (meaning this is a Euro 5 engine), and our cars have essentially been de-specced to miss out on the latest 48-volt mild-hybrid tech, which is standard on all grades of the A6 Allroad in Europe. Maybe that is part of the reason the cost is down, this time around. 

And while the outputs of the 45 TDI in Australia are pretty decent, other markets have the A6 Allroad offered in 50 TDI (210kW/620Nm) and 55 TDI (257kW/700Nm) trims. Remember, though - this is a very niche player here. 

The C4’s single trim level has a single engine, and it’s a good one; a peppy 1.2-litre three-cylinder turbo.

It appears elsewhere in the Stellantis catalogue and has been refreshed for the 2022 model year with a new turbo and other small refinements. In the C4 it produces 114kW/240Nm and drives the front wheels via an Aisin-sourced eight-speed torque converter automatic transmission.

No dual-clutches or CVTs to be found here. This sounds good to me, but is it good to drive? You’ll have to read on to find out.

Audi claims the 45 TDI powertrain in the A6 Allroad will use 6.6 litres per 100 kilometres. That’s the official Australia fuel consumption figure on the combined-cycle test. CO2 emissions are claimed at 174g/km.

During my time in the Audi A6 Allroad I saw an average fuel use return of 7.4L/100km - which was taken over highways, back roads, unsealed roads and twisty bits. There was even some urban stop-start in there, too. I think that’s pretty darn good for a car of this size.

Fuel tank capacity is 63 litres, meaning a real-world range of 851km based on my fuel consumption.

As mentioned above, the A6 Allroad is a mild hybrid model in other markets, but not in Australia. We don’t even get the Euro 6-compliant version here, as there’s no incentive for it to be offered locally - as in, there’s not even AdBlue treatment. 

There’s no electric version (though you might want to look at the all-new Audi e-tron)  or plug in hybrid, and no petrol model either.

Despite the little turbocharged engine and the abundance of ratios in that transmission, the Citroen C4 disappointed me a little bit when it came to real-world consumption.

The official/combined consumption sounds reasonable at just 6.1L/100km, but after a week of driving in what I would consider realistic combined conditions my car returned 8.4L/100km.

While it’s not terrible in the wider context of small SUVs (a segment that is still packed with naturally aspirated 2.0-litre engines), it could be better.

The C4 also needs at least mid-shelf 95RON unleaded fuel and has a 50-litre fuel tank.

Here’s where the A6 Allroad separates itself from, say, an Audi Q5 or Q7. It’s a low-slung wagon, made for touring on country roads, doubling down on dirt backtracks and cruising comfortably on the freeway.

It’s not as upright as a Q5 or Q7, and that means it has a lower centre of gravity - so it feels more hunkered down, more settled into the surface below.  

And in the case of the A6 Allroad, there’s adaptive air suspension all around to cushion the car from what lies beneath. For the most part, that air suspension is superb - it absorbs big bumps and lumps very well, though the oversized 21-inch optional wheels can’t disguise sharp edges from those in the cabin. 

The general compliance is very good, and as I found out first hand, you can easily soak up hundreds of kilometres without feeling the affects of the road underneath you - even over bumpy country back roads and lumpy dirt sections.

The steering could be better; it’s a little bit vague and heavy on centre at higher pace, but at lower speeds it is light and amicable. Very easy to park despite its size, and easy to manoeuvre around town, too.

The engine builds pace with superb linearity, and it’s very quiet and refined as well. There is a tiny bit of turbo lag at lower speeds or from a standstill – but it is completely manageable and never feels like it’s sluggish at all. The 0-100km/h claim of 6.5 seconds seems achievable, too. 

The eight-speed automatic transmission was mostly very smart and well sorted - although in other VAG models with this engine family/eight-speed auto, the transmission never felt quite as busy at higher speeds. I noticed it shuffling between seventh and eighth gears more than I was expecting, given how much torque the engine has. It’s not annoying at all, and nor is it unrefined, and could well have something to do with attempting to save fuel rather than leaving it in top gear.

During night driving, the optional HD Matrix LED headlights were exceptional - among the best headlight technology that I’ve ever encountered. The ‘matrix’ technology means they can blank out oncoming traffic or cars in front of you while keeping the high-beam on in other areas. The auto headlights with auto high beam worked very well, too.

The plan was never to do a serious off road review, but I did do some driving on unsealed roads and found the Allroad to be excellent. 

Through slippery unsealed corners it exhibited excellent traction, though you can feel the weight of the car shifting from side to side when you pivot through corners. There was a touch of skittishness over mid-corner bumps, but again that could be more to do with the big wheels than anything else.

I came away thinking that if you had your eyes closed, you wouldn’t even know that you were on dirt or gravel. It really is an exceptional car across sealed and unsealed roads. 

Driving the C4 is an interesting experience because it approaches the road a little differently from most of its rivals.

It really leans into Citroen’s newfound comfort-focused niche with the seating and suspension. This results in an overall experience that is a bit unique in the market, and quite pleasant, too.

The ride really is quite good. It’s not a fully hydraulic system but has dual-stage dampers that essentially smooth out corrugations and much of the nasty stuff that comes into contact with the tyres.

It’s odd because you can hear the big alloys crashing about on the road, but ultimately you feel little of it in the cabin. What’s more impressive is Citroen has managed to imbue the C4 with this floating-on-the-road feeling, while maintaining enough of a ‘real’ driving position to make it feel like you’re sitting in the car and not on it.

The overall result is impressive. The comfort extends to the seats, as mentioned, which really do still feel floaty and supportive even after hours on the road. It also extends to the steering, which has a very light tune. This is a bit unsettling at first, as it feels like it has a large dead-zone in the centre, but it is also speed dependent, so once you’re cruising it regains a significant amount of feel. You can also manually bring back a bit of firmness by setting this car to its Sport drive mode, which is unusually good.

This means you can have an ease of operation in tight quarters while maintaining enough feel to make it fun to drive when you need to ask more of it. Clever.

Speaking of fun, the revised 1.2-litre three-pot is a hoot. It has a distant but entertaining gruff tone under pressure, and surges forward with just enough urgency to not leave you really wanting for power.

It’s not what I would call quick, but it has a raucous attitude paired with a well-behaved torque converter auto to make it truly entertaining. When you push it, there’s a moment of turbo lag followed by a lump of torque, which the transmission lets you ride out before decisively snapping into the next gear. I like it.

Again, it's not quick, but it punches just enough above its weight to leave you with a smile when you stick your boot in. To have that in a car otherwise so focused on comfort is an unexpected pleasure.

The dash cluster could use some work, as could visibility out of the cabin. The small aperture out the rear and tall dash line could leave some drivers feeling a bit claustrophobic. While the engine is fun to engage with, the turbo lag could potentially be a source for annoyance at times, too.

Brief negatives aside, I think the C4's drive experience really brings something unique, fun, and comfortable to the small SUV space.

There's not such a good story to tell here. While the C4 comes with today’s expected suite of active-safety items, it just fell short of a five-star ANCAP rating, scoring just four stars upon its launch.

Active items on the C4 Shine include auto emergency braking, lane-keep assist with lane-departure warning, blind-spot monitoring, adaptive cruise control, and driver-attention alert.

Some active items are notably missing, like rear cross traffic alert, rear auto braking, and more cutting-edge items like junction alert for the AEB system.

What cost this car its five-star rating? ANCAP says the lack of a centre airbag contributed, but the C4 also fell short on protection for vulnerable road users in the event of a collision, and its AEB system also had marginal night-time performance.

Audi offers a three-year/unlimited kilometre warranty, which is as good as BMW, but not as good as Lexus (four years/100,000km) or Mercedes-Benz, Volvo and Genesis (five years/unlimited kilometres). It’s falling behind in the luxury sphere.

The company offers reasonably priced capped price ownership plans for maintenance. Purchasers can roll in the cost of either a three-year service plan ($2170) or a five-year plan ($3300). That covers off the usual service items due every 12 months/15,000km.

Roadside assist is included for the period of the new car warranty.

Ownership has always been a tough topic for unusual Euros like the C4, and that seems to continue here. While Citroen offers a competitive five-year and unlimited-kilometre warranty for all its new products, it’s the service costs that will hurt the most.

While most Japanese and Korean brands are competing to really keep these numbers down, the C4’s average yearly cost, according to the provided schedule, comes in at an average of $497 for the first five years. That’s nearly double the cost of Toyota’s C-HR!

The C4 Shine will need to see a service centre once a year or every 15,000km, whichever occurs first.