Audi Q5 vs Audi Q4 E-Tron

What's the difference?

The third-generation Audi Q5 in TDI quattro form is a competent if unremarkable all-rounder that would tick most boxes for private or commercial use. Whether it’s the best buy of the 21 brands and 34 models that compete in Australia’s congested ‘Medium SUVs over $60K’ segment, only a customer can decide after weighing up its many alternatives.

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.

The Q5 TDI quattro rides on a 2823mm wheelbase and is 4717mm long, 1900mm wide and 1662mm tall with an 11.9-metre turning circle, so it’s a comfortable fit for metropolitan car parks. It has sophisticated five-link suspension, four-wheel disc brakes and electric power-assisted steering.

The third-generation Q5 features fresh styling with its prominent grille treatment the most noticeable feature. Overall, the standard S line exterior has an athletic look, which is optimised by our example’s larger 20-inch wheel option which nicely fills the wheel arches.

The interior has an open and airy feel, enhanced by the contrasting dark grey/pearl beige upholstery and panoramic sunroof options.

There are lots of soft-touch surfaces, exposed stitching and satin chrome highlights, plus (unfortunately) piano black surfaces on the dash and console which shine like mirrors when clean but can quickly turn opaque with unsightly fingerprints during everyday use.

Good design can be seen in the prominent ledge created by the dash inlay at the base of the central touchscreen, as you can comfortably rest the base of your palm on it to steady your index finger when using the touchscreen while driving, which is much easier and less distracting than trying to do this without such support.

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 Q5 TDI quattro weighs almost two tonnes (1955kg kerb weight) which when deducted from its 2595kg GVM rating leaves 640kg of load capacity, which for either work or play is ample for up to five adults plus luggage of which up to 75kg can be carried on the roof.

It’s also rated to tow up to 2000kg of braked trailer but Audi does not publish a maximum legal weight for the car and trailer combined (not unusual in this vehicle segment), so we can’t confirm if it can carry its full in-car load capacity when towing its maximum trailer weight.

The expansive ‘Digital Stage’ multimedia screen spans about two-thirds of the dashboard’s width, above a decent sized glove box and another compartment to the right of the driver’s knee for small items.

Driver and front passenger also have access to a bottle-holder and bin in each door plus there’s a 12V socket, two USB-C ports and a wireless phone-charging pad in the centre console, which also provides two cupholders and a storage box with padded lid that doubles as a comfortable elbow rest.

The rear bench seat offers adequate space for tall adults, given I’m 186cm and when seated behind the driver’s seat set in my position I have about 40mm of knee clearance and about the same dimension in head clearance, even with the optional sunroof.

It’s less comfortable in the centre seat obviously, with feet either side of the transmission tunnel and knees together between the front seat backrests. Shoulder room is tight for three adults, which is tolerable for short trips but a maximum of two would be ideal for longer treks.

Rear passengers get a bottle-holder in each door plus elastic net pockets on both front seat backrests. The rear centre seat backrest also folds forward to reveal two cupholders and the rear of the centre console has adjustable air vents and a pair of USB-C ports, plus third-zone climate control adjustment.

The fully carpeted rear luggage area is equipped with another 12V socket plus tidy bag, first-aid kit and four load-anchorage points. The rear section of the load floor is hinged, which when opened reveals a large underfloor storage compartment.

With the rear seat upright, this luggage area offers more than half a cubic metre of load volume. And with the seat folded flat this expands to almost 1.5 cubic metres, with a large flat floor suitable for carrying everything from a mountain bike to flat-pack furniture.

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 Q4 e-tron is available in two body shapes – a handsome if quite conservative wagon SUV style, as well as a sleeker coupe-SUV derivative that Audi calls Sportback.

The latter is expected to be the slightly more popular of the two designs, despite costing about $1600 more.

Obviously slotting in between the smaller Q3 and larger Q5, the Q4 e-tron almost shadows the latter size wise, and is available in either 45 RWD or 55 quattro all-wheel drive (AWD) guises.

Since both share the same, largish (82kWh) battery, Audi reckons most buyers will choose the 45, especially as its pricing in either body style slips under the Australian Federal Government’s Luxury Car Tax (LCT) threshold.

Kicking off from $84,900 before on-road costs, the base grade includes a full suite of safety tech such as full stop/go adaptive cruise control, an electronic instrument display, heated front seats, three-zone climate control, a gesture-controlled powered tailgate and 19-inch alloy wheels.

These come on top of the LED headlights, an 11.6-inch touchscreen, full wireless multimedia connectivity, a premium audio system, electric driver’s seat adjustment, navigation, folding/heated/kerb-side-view mirrors, roof rails and automatic parking.

From the Sportback 45 and up, the S-Line package is standard, bringing with it 20-inch alloys.

All the essentials then.

But, on the base 45s, be prepared to spend extra for luxuries like bolstered “sports” seats, a head-up display, a powered front passenger seat, driver’s side memory settings, a 360-degree camera instead of the regular rear-only view and privacy glass.

The 55 quattro grades from $105,900 include most of these, along with an extra electric motor for AWD and considerably more muscle, as well as variable-ratio steering, Matrix LED headlights, dynamic indicators, extra lane-assist intervention and the aforementioned S-Line trim shod with 20-inch alloys.

Now, against the remodelled Tesla Model Y Juniper, the Audi costs considerably more, but it is also a more upmarket (and less conspicuous) luxury brand that prioritises quality.

The iX1, iX2, EQA and EX40 cost around the same as the Q4 e-tron, but aren’t quite as large, offer smaller batteries (Volvo-aside), are based on other internal combustion engine (ICE) models compared to the Audi’s ground-up dedicated-EV architecture and, except for the BMWs, are getting somewhat long in the tooth.

Conversely, fresh designs, bespoke electric platforms and bigger batteries set the larger yet less-expensive Polestar 4 as well as the more-compact yet loaded Genesis GV60 apart against the Audi’s aforementioned competitors, but neither challenger brand is as established as all the others. Finally, Lexus’ UX300e is too compact while the larger RZ450e has priced itself out of contention here.

So, why the delay getting the Q4 e-tron to Australia? Especially when the brand has offered the bigger and much-more expensive Q8 e-tron SUV since the beginning of this decade?

Initially, demand in Europe was through the roof and supply could not keep up. Then Audi elected to wait for an update that debuted globally in September 2023, ushering in a raft of changes, to make its most important EV ever more competitive in a wildly shifting market.

These include efficiency gains leading to more range thanks to an upgraded motor and battery, stronger performance, faster charging, retuned steering, comfier suspension and improved safety spec.

Not that you’d be able to spot the differences comparing new Q4 e-tron with old. Nor even against sibling SUVs…

The turbocharged 2.0-litre four-cylinder diesel engine meets tough Euro 6 emission standards using AdBlue and produces 150kW of power between 3800-4200rpm, with 400Nm of torque on tap between 1750-3250rpm.

It’s paired with Audi’s latest hybrid diesel-electric technology which can add up to 18kW of power and 230Nm of torque to these figures, while also allowing short periods of pure electric driving for low-speed manoeuvring and parking.

The seven-speed torque converter automatic offers the choice of sequential manual gear-changing using the steering wheel paddle-shifters, along with selectable drive modes to optimise Audi’s iconic ‘quattro’ all-wheel drive technology.

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.

Audi claims official combined average consumption of 5.9-6.8L/100km and the dash display was claiming 6.5 at the completion of our 364km test, which comprised our usual mix of suburban, city and highway driving with up to five adult occupants and light luggage.

Our own figure, calculated from fuel bowser and tripmeter readings, was 9.1L/100km which is still within the usual 2.3L/100km discrepancy between official and real-world figures. So, based on our test figure, you could expect a realistic driving range of around 700km from its 65-litre diesel tank.

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.

There’s a comfortable and spacious driving position as you’d expect, with ample seat and steering wheel adjustments combined with a large left footrest to enhance support.

It exhibits solid build quality and good driving dynamics, from its nicely weighted steering to its supple ride quality that optimises the Q5’s sprung weight to flatten the bumps.

Acceleration from the turbo-diesel engine comes in a smooth surge that benefits from the extra input of the electric hybrid system, which combined can deliver more than 600Nm of torque. However, at times we detected a slight delay in response when accelerating hard from standing starts or low speeds.

The automatic transmission shifts sweetly between its seven ratios and the all-wheel drive transmission delivers reassuring traction.

We also trialled the different drive modes, with ‘Dynamic’ providing the most energetic response, particularly when using the paddles in manual-shift mode. However, we spent most of our test in the ‘Balanced’ default setting, as it provides the best compromise between ride comfort and performance for everyday use.

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.

Tested back in 2021, the Q4 e-tron managed a five-star ANCAP crash-test rating, and possesses most of the driver-assist safety systems expected nowadays in this class of car.

This includes Autonomous Emergency Braking (AEB, dubbed Audi Pre-Sense in corporate-speak), lane departure warning/assist, rear cross-traffic alert, blind-spot warning, on-coming traffic turn-and-swerve collision avoidance, exiting-vehicle alert tech, adaptive cruise control (with active lane assist in the 55s), driver attention monitor, tyre pressure indicators, 360-degree cameras, and light and rain sensors.

AEB operating parameters vary. Car to car, it’s between 5km/h and 250km/h. For pedestrian/cyclist/back-over, it’s from 5km/h to 85km/h. And the lane support systems work between 60km/h and 250km/h.

All outboard occupants also enjoy full airbag coverage – front, front side/centre, and full-length curtain airbags.

A trio of child-seat anchorage points are fitted across the back seat, along with ISOFIX child-seat anchorages in the front passenger seat and two in the rear outboard positions.

The standard warranty is five years/unlimited km, which is shorter than rivals like Kia's EV5 with seven years. Scheduled servicing is every 12 months/15,000km whichever occurs first. Audi offers an upfront five-year service plan that covers the first five scheduled services up to five years/75,000km for $3520, or an average of $704 per service. This plan includes five years of roadside assistance.

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.