Audi Q4 E-Tron vs BMW IX

What's the difference?

Audi is famous for sticking doggedly to front-wheel drive and quattro AWD, but clearly, when it puts its mind to it, the few RWD machines it has produced over its 116 years have been exceptional.

While not as exciting as the R8 or as supersonic as the e-tron GT, the Q4 e-tron is an impressive machine. Thoroughly engineered and thoughtfully designed to be a friendly, refined, comfortable, safe and capable family SUV, it deserves to be on your shortlist.

With a couple of choice option packages, the base 45 seems remarkably complete, but there’s plenty to enjoy in the hot-shot 55 quattro as well. Either way, Audi seems to be on a winner.

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

If anyone was worried that it would be too late to get a decent bit of value out of an entry-level iX, there's reassuring news.

With more power, range and features added to the model and the cost remaining close to its former sticker price, the iX has held up well despite now existing in a more competitive environment.

Whether talking about the SUV or Sportback, the Q4 e-tron is an excellent example of Audi’s recent design prowess.

Beautiful proportions, crisp surfaces, exquisite detailing and undeniable elegance are all present in spades. And the Sportback is a rare example of a graceful-looking coupe SUV, though it is not in the otherworldly Polestar 4’s league aesthetically.

However, where is the originality? You’d never know these are rear-motored and predominantly RWD vehicles. Yes, the Single Frame grille execution is amongst the best-yet from the brand, while the wheelarch ‘blisters’ are an (albeit questionable) homage to the seminal Ur-Quattro of the 1980s, but the Q4 e-tron could be any contemporary Audi SUV from the Q3 up. Its design is the opposite of daring.

Still, maybe the Q4 e-tron’s classy, relatable conservatism explains why the Brits made this car their second-best selling EV of 2024, representing everything that the number one Model Y is not.

Plus, with current global automotive interiors stalling behind over-illuminated and oversized screens full of greasy fingerprints, glitchy electronics and reflections of their frustrated operators, a bit of old-school Audi cabin presentation knowhow can only be a good thing, right?

The iX was a bit divisive upon its original launch, because it was one of the early adopters of BMW’s current ‘big grille’ era.

The good news for the iX is that many have adjusted their expectations on that front and it now feels pretty well at home in the brand’s line-up.

The addition of the 'Iconic Glow' grille surround might be a step too far for some, but overall the iX has aged well and its exterior design hasn’t changed much because of that.

The adaptive LED headlights have new DRL elements, and the M Sport pack is now standard, but if you were only casually familiar with the iX you’d have to be looking closely to spot the update.

The new colour palette for the iX also includes the pictured 'Arctic Race Blue metallic', though I’m personally a fan of the iX in all black, giving it a more monolithic look.

Inside, it’s a similar story - what was once perhaps ahead of its time is now the expectation in an electric SUV. Minimalism in terms of physical controls, but plenty of space.

Helping the feeling of spaciousness is the now-standard panoramic sunroof, though a lack of physical shade is one of the iX’s few interior let-downs. Instead, it can electrochromatically ‘shade’, which still lets in plenty of light.

At night, ambient lighting joins the glow of the iX’s rather large 14.9-inch multimedia touchscreen and 12.3-inch driver display.

Unlike most of its German competitors (and the Volvo EX40), the Q4 e-tron is built on a dedicated EV platform known as MEB, and shared with other Volkswagen Group models, like the Skoda Enyaq and Volkswagen ID.4.

Consequently, the Audi feels a wee-bit narrow inside, as the MEB SUV family are on the smallish side for medium-sized SUVs. This is not a criticism, just an observation.

And there is no lack of interior space, either. Entry/egress is easy via large doors, there’s plenty of space for heads and shoulders and legroom is generous. All are an upshot of the EV-only platform.

Despite some obvious packaging links with the other VW MEB interiors, the dashboard is very Audi-esque in styling, layout, functionality and quality.

From the ‘Virtual Cockpit’ electronic instruments and crisp multimedia screen, to the feel of the buttons and logical, easy locations of the controls, the Q4 e-tron is completely and utterly on-brand. And that means high standards. Looks posh. Works well. Nice to touch. No bewildering endless screen-menu search and rescue frustration here.

Plus, the Audi is practical. We’ve already talked about ample room, but even the standard, non-sports seats cosseted and supported over a few hours of testing; different and unexpected levels of storage (including a nifty bottle holder ahead of the forward door jam – brilliant); superb ventilation and, especially in the Sportback 55 e-tron quattro sampled, a banging audio system, complete a suave and sophisticated interior experience.

Issues? No too many, really.

There is quite a lot of quality plastic material visible, which might offend some sensitive souls. There is some road-noise intrusion over coarse surfaces, perhaps reminding owners of the Q4 e-tron’s shared architecture; and rear vision in the Sportback is hampered by fat pillars and slim back glass.  

However, no spare wheel exists. Nada. Just the occasionally ineffective and always-infernal tyre inflation kit, that renders the tyre and kit useless afterwards and so makes for expensive replacements. And just because almost everybody else does it, this is not good enough for Australia.

The corollary of that is quite generous luggage capacity, with the Sportback’s 535 litres somehow beating the more-upright SUV’s 520L VDA capacity, though with the rear seatbacks folded that switches to 1460L and 1490L respectively. Both are gorgeously lush and quite practically shaped.

And what about the storage compartment up front?

The space on offer in both rows of the iX is a huge plus, and it might even be enough to make you look past some of the small downsides to the electric Bimmer’s interior.

The iX’s clever two-level central console has the phone charger pad and drinks holders down out of the way and means you can put distractions (phone) and your tall bottles out of the way. There's a slot above for your phone to sit upright with a gap under for charging, too.

The storage bin under the armrest also has plenty of space as well as a little shelf for smaller items you don't want to go hunting for, but the iX’s control panel and dial are still reflective and, at certain times of the day, this means distracting light getting in your eyes. 

Speaking of distracting, I have found BMW’s multimedia software to be less intuitive and more complicated with each major update, and ‘OS 8.5’ is no different. At this point, using the brand’s touchscreen feels like operating an iPad on the move, with dozens of menu tiles to sort through.

But back to the physical space that is the iX’s interior - the big EV makes a lot of sense as a family car, especially if your kids are old enough to appreciate (and keep clean) the fit and finish.

Not only does the drive have a nicely adjustable and comfortable sports seat thanks to the M Sport pack, there's also heating and a massage function.

The front passenger gets the same, and the second row is borderline palatial. There's heaps of kneeroom, headroom, and even space under the front seats at their lowest setting to slot your feet.

The four-zone climate controls mean arguments are avoided, there is of course a central armrest, though even with it folded up and a person in the centre there's enough room in the back to be comfortable. 

Behind that, the iX’s 500 litres of boot space could probably be expanded but at the expense of rear legroom, so it's acceptable. There is space under the floor for cables, but no space saver spare, just a repair kit.

There's a switch that allows you to fold the seats down from the tailgate, but you can also manually fold the middle seat for a 40/20/40 split rather than the more expected 60/40.

The sole entry-grade iX is the xDrive45 M Sport, which brings with it more than the original base xDrive40, but also a price a few thousand dollars higher.

It starts from $142,900 but can quickly become much more expensive when you start ticking options boxes. But in this market segment, it's not that unusual, especially considering recent arrivals like the Polestar 3. 

Given it’s only a little more expensive than before, the extra kit and higher grade that now forms the iX entry-point is impressive.

The 'M Sport' pack is now standard as the name suggests, plus there’s M trim inside like the steering wheel, the M seats and silver design highlights.

The LED lights are now adaptive and the glowing grille surround has also been added.

There’s also now a panoramic glass roof as standard, rather than an option, plus the steering wheel is heated and there’s now a tyre pressure monitor.

Aside from that, there’s plenty that carries over, like the wireless phone charging, wireless Android Auto and Apple CarPlay, 18-speaker surround sound by Harman Kardon, four-zone climate control and heated front seats.

There’s also an 'Executive Pack' which adds some comfort features like soft-close doors, privacy glass and front seat ventilation with rear seat heating. That one’s $6500.

Then there’s active steering, which brings the rear wheels into play for more manoeuvrability and stability for $3000.

Adaptive air suspension is $4000, while the most expensive option is a 30-speaker Bowers & Wilkins ‘Diamond’ surround sound system for $9500.

Unlike the Model Y, there's no storage up front. That space is instead reserved for auxiliaries and, in the 55 quattro versions, the second electric motor that drives the front axle for AWD.

In all versions, a permanently excited synchronous motor sits on the rear axle driving the rear wheels via a single-speed transmission.

Tipping the scales at 2145kg, the 45s produce 210kW of power, to offer a power-to-weight ratio of 98kW per tonne, while the 2235kg 55s’ 250kW output ups that to 112kW/tonne. Both Q4 e-trons deliver a healthy 545Nm of torque.

No slouch, the 45s manage the 0-100km/h sprint in a rapid 6.7s, while the 55 quattro’s extra motor chimes in when extra traction is required, shaving another 1.3s off that, for a 5.4s time. Top speed in both is limited to 180km/h.

Adding a bit more driver involvement, the 55s have variable ratio steering, while MacPherson-style struts up front and a four-link independent rear suspension setup out back help keep everything under control.

The iX has, as the xDrive part of its name would suggest, a dual-motor electric set-up with all-wheel drive. 

Power and torque now total 300kW and 700Nm for the system in the xDrive45 M Sport, up from the 240kW and 630Nm on offer in the outgoing xDrive40.

BMW says the iX is now good to hit 100km/h from a standstill in 5.1 seconds, with its claimed top speed a nice, rounded 200km/h.

Built on a 400V architecture, the Q4 e-tron uses an 82kWh Lithium-ion battery pack, offering a useable capacity of 77kWh. It only charges to 80 per cent full to help preserve battery life.

Now, driving most of the available versions over a 200km launch route from Adelaide airport to wine country, we averaged between 17.5 and 19.5kWh/100km, with the lighter RWDs obviously being the more economical of the drivetrains.

In ascending order, the official combined average figures are 16.9kWh/100km (Sportback 45), 17.4kWh/100km (45 SUV), 17.5kWh/100km (Sportback 55 quattro) and 18.1kWh/100km (55 quattro SUV).

Despite weighing about the same, the Sportback uses around 0.5kWh/100km less electricity than the SUV version, due to better aerodynamics.

That translates to about 15km of extra distance, with the Sportback 45 going the furthest, delivering a WLTP range of 540km. That’s followed by the 45 SUV, Sportback 55 quattro and 55 quattro SUV with 524km, 503km and 488km respectively.

To aid with recharging, the driver has three modes of battery energy recuperation via steering-wheel paddle shifters.

Plugged in at home, the battery needs about 40 hours to completely recharge, or over 12 hours using an optional 7kWh Wallbox. Maximum AC charging capacity is 11kW.

With a maximum of between 135kW (RWD) and 175kW (AWD) of DC charging capacity, however, 10-80 per cent charge using a 50kW DC public charger needs fewer than 70 minutes, or just 40 minutes if you find a 100kW station.

The iX’s 94.8kWh battery allows a range up to 522km, but relatively low efficiency because of the size and weight.

Its 20kWh/100km is on the higher side of power use for cars around this size and this is part of the reason its huge battery capacity results in a fairly average driving range.

Maximum power input for DC fast charging is, however, up from 150kW to 175kW with the update, which is good news for those long drives.

Audi might be late to the affordable electric SUV party, but it’s certainly been worth the wait from behind the wheel, because the Q4 e-tron drives exactly how you would expect an Audi to.

The 45 in either body shape has ample oomph, as its impressive 6.7s 0-100km/h times prove, providing a decent amount of instant speed the moment you put your foot down. This is a smooth, strong and muscular performer.

The steering is nicely modulated and precise, for easy, flowing handling, even when the speed is taken up a few notches. Note that while it may seem a little light, it can be configured for a more dynamic feel.

However, slightly stronger single pedal braking would be appreciated. The Audi EV’s brakes do a great job stopping the car, but they do feel a bit on/off at first. Maybe even a bit wooden.

All the Q4 e-trons we drove on the launch around the Adelaide hills rode on steel springs. That said, and to our surprise, the suspension is more than comfortable enough, soaking up many of the bumps we encountered without breaking a sweat.

Plus, except on coarse bitumen, there's not much of any type of noise coming through inside the cabin. These are agreeably comfortable and refined cruisers.

Meanwhile, the 55 quattro version is a slightly different proposition, with measurably stronger acceleration across the board and more eager throttle response. Actually, even on bone-dry roads at the height of summer, there’s almost too much torque coursing through the axles, so just be wary of this EV’s considerable power.

Still, the twin-motor Audi feels like a relaxed yet brawny grand touring SUV, with plenty in reserve for fast overtaking and quick getaways. Even the RWD model provides exceptional roadholding and control, but that extra AWD grip when things become a bit slippery would certainly be a bonus.

Plus, kudos to the Germans for delivering user-friendly driver assist safety systems. Nuanced and largely unobtrusive, they keep you safe without driving you to distraction. China and Polestar in particular, are you listening?

On the flip side, you do feel the extra weight of the second electric motor (about 100kg more), and so it doesn't quite have the agility and alacrity of the standard 45 RWD machine.

Indeed, there isn’t quite the athleticism or connection of driver-focused alternatives (like BMW), but the Q4 e-tron rarely puts a foot wrong, either.

Impressively capable and dynamic, Audi’s more-affordable electric SUV has been worth the wait.

The BMW iX was a relatively early entry into the catalogue of electric cars I’ve driven and because of that it had a couple of (in hindsight) unfair criticisms levelled at it.

For a start, it felt heavier than expected and its ride quality didn’t feel up to BMW’s standards - both things that plenty of electric SUVs have struggled with since.

But its drivetrain, design, and interior all impressed, aside from perhaps some of the aforementioned interior reflections.

Now years on, and the iX has aged well.

Some of the mechanicals and suspension also copped a tweak along with the entry iX now being a more powerful ‘45’. The result is a big electric SUV that holds up better than I remember.

‘Smooth’ is the key word that comes to mind in regards to a lot of the iX’s characteristics. While it’s still not perfect and feels heavy, the iX rides well in comparison to many SUVs on the market, including some of its close rivals.

Perhaps key to this is the fact its standard 21-inch wheels leave plenty of tyre to help the suspension soak up sharp edges on bumps, while we’re sure BMW’s handling engineers have learned more about getting the best out of a big, heavy electric vehicle in the last couple of years.

Road noise is well-muted as a result, and the shape of the iX doesn’t seem to lend itself to excessive wind noise. Even when you’re getting rather quick.

Despite being a 2525kg beast, its 5.1-second sprint to 100km/h is in the muscle car realm - the last of Holden’s V8 Commodores would do about that, for reference.

Its acceleration is also nicely progressive, rather than giving you an almighty but unnecessary jolt of torque right as you put your foot down. But once there’s traction and you’re rolling, the xDrive45 is impressive.

Meanwhile, its cornering and braking still reveal the heft behind the iX, it’s not something you can chuck around like a go-kart, but that’s also not really its area.

Anyone familiar with BMW’s steering characteristics will find the slightly higher force required for its weight (and thickness of the steering wheel rim) standard, though it’s still unnecessarily on the heavier side.

The BMW iX holds a five-star ANCAP rating, which it earned under slightly more lenient testing back in 2021.

Seven airbags, auto emergency braking with cyclist and pedestrian detection up to 80km/h, lane-assist, rear-cross traffic alert and intersection assist, plus a surround view parking camera all help immensely.

Audi’s warranty remains the same as before, at five years with unlimited kilometres, with the battery covered for eight years or 160,000km. Six years of roadside assistance is also included.

Service intervals are every two years or 30,000km. Nothing special here nowadays.

But the Q4 e-tron owner can buy a six-year service plan for a total of $2050, while gaining 12 months of free electricity at Chargefox stations. They can also purchase a JET Charge home installation charger from $800.

BMW offers a five-year/unlimited kilometre warranty with an eight-year/160,000km warranty on the battery.

BMW servicing takes place as needed rather than on a schedule, meaning you’ll be alerted via the car or app when a service is required in the near future.

For the iX a six-year all-inclusive service pack costs $3475, regardless of how many km you drive.

BMW has 54 servicing dealers listed in Australia, with each capital city covered and many more locations in the eastern states.