Audi RS Q8 vs Citroen C5 Aircross

What's the difference?

The Audi RS Q8 Performance is a lot - of everything. It offers lots of power, lots of performance, lots of space and lots of luxury. But it’s also a lot of money, and at more than $250k it’s not going to be on everyone’s shopping list. It’s a very niche proposition for a small group of buyers. For those select few, those who want a lot of everything and who crave the ultimate of whatever product they’re buying, then the RS Q8 Performance is going to be a very tempting proposition - even if they never set any lap record in it.

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

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. 

We don’t refer to ‘facelifted’ cars for no reason, the RS Q8 Performance has a number of visual changes.

These include a new Audi ‘singleframe grille’ and new front bumper design, with a new Matt Carbon trim package available to highlight that.

There’s also a new rear bumper design as well as new digital daytime running lights at the front and digital OLED lights at the rear.

The unique forged alloy wheels are another design change, but also bring a functional element. Measuring 23 inches they do a good job of filling out the wheel arches and give the RS Q8 Performance a purposeful stance and good proportions. But they are also 5kg lighter per wheel than the 22-inch rims on the RS Q8, saving unsprung weight to help the ride and handling.

Inside, Audi hasn’t made any dramatic changes to the design, which is fine because the brand does some of the best cabins on the market in terms of look and feel.

What is new is an aluminium inlay and an optional RS interior design package which provides a unique finish to the seats, with contrasting stitching, for an additional $4100.

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.

While it’s easy to get swept up in the power and speed of the RS Q8 Performance, it’s important to remember that it’s an SUV and it needs to offer ‘utility’ as well as ‘sports’. 

With that in mind, the front seat occupants are well looked after with supportive and comfortable sports seats, with a good amount of small item storage spaces. 

The rear seats are surprisingly comfortable, despite the sloping roofline of this ‘coupe-style’ SUV. Audi has cut recesses into the ceiling to create more headroom, so it will be fine for anyone under six-foot tall. Despite there being five seat belts, this is realistically more of a four-seater for adults, although three smaller kids could squeeze across the back.

There’s also a pair of cupholders, two USB-C ports, a 12-volt outlet and your own climate controls for the rear passengers.

As for the boot, again it loses some volume because it’s not a wagon-style SUV, but there’s still a decent, square floor space with a claimed 605 litres of capacity.

So, overall the Q8 obviously isn’t the most practical version of an SUV, but it does well given its focus on style.

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. 

This is the latest iteration of Audi’s twin-turbo 4.0-litre V8 petrol engine - and it’s a beauty.

While this engine is used in a variety of models, for the RS Q8 Performance Audi has taken power to 471kW with 850Nm of torque, which, as mentioned earlier, makes it the most powerful internal combustion engine Audi has ever offered in a production car.

That’s also a big boost over the previous RS Q8, which managed 441kW/800Nm, and is only just shy of the 485kW/850Nm offered by its ‘cousin’, the Porsche Cayenne Turbo GT.

Audi claims that the RS Q8 Performance will launch 0-100km/h in just 3.6 seconds and keep going to an electronically limited top speed of 250km/h. We tried to test the acceleration time on a closed circuit, but driving into a very strong headwind the big SUV could manage only 4.4 seconds - which is still a very quick time given its size and luxury.

The engine is paired to an eight-speed automatic transmission and Audi’s trademark quattro all-wheel-drive system to help smoothly transmit so much power to the road.

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.

Unfortunately you don’t get the most powerful production engine without some trade-off, and for the RS Q8 Performance that means significant fuel consumption. The official fuel economy rating is a very thirsty 12.2L/100km, but that's the best-case scenario too. If you partake in some spirited driving that unleashes the full potential of the engine will result in a higher rate of premium unleaded being consumed by the big V8. We saw returns in the high teens across our time, but that was largely open road driving, so we’ll reserve final judgement for an extended test drive across more varied conditions.

Thankfully there’s a fairly large 85L fuel tank, so if you can hit the claimed average you can get a theoretical 696km of range.

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.

Obviously the RS Q8 Performance is all about speed, Audi made its intention clear by sending it to the Nurburgring to set a new SUV lap record for an SUV. But the reality is most owners are unlikely to hit the racetrack in the RS Q8, so what’s it like on the road?

In a word? Impressive.

While the engine is undoubtedly the star attraction offering up so much effortless performance, the RS Q8 Performance wouldn’t be so quick around the Nurburgring or as nice to drive on the road without its highly advanced chassis systems.

It has an array of technology to help it handle, it has active air suspension, adaptive dampers, active roll stabilisation and all-wheel steering, which help to make this big SUV handle like a much smaller car.

The suspension does a remarkable job of providing a compliant ride on such large alloy wheels, while also providing responsiveness.

The handling is certainly helped by the all-wheel steering, which gets the rear wheels to turn in the opposite direction to the fronts at low speed (below 50km/h), but in the same direction at high speed (above 80km/h), making the big SUV feels much more direct when changing direction.

As for the overall experience, that’s helped by Audi’s surprising decision to actually remove some of the sound insulation, which allows you to hear the engine even more than you ordinarily would. This really plays to the dynamic nature of the RS Q8 Performance.

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.  

Despite the extra power and fancy new brakes, the RS Q8 Performance costs the same to service as the existing RS Q8.

That means $4690 for Audi’s five-year service plan, and $5720 for the Audi Advantage.

The latter package includes an extra two-year, unlimited kilometre warranty on top of Audi’s five year/unlimited km coverage. It also includes two extra services and two more years of roadside assistance, to keep you covered for seven years total.

That’s good, but it’s still an extra cost when many mainstream brands already offer seven years of coverage as standard.

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.