Audi Sq8 E-Tron vs BMW 520i

What's the difference?

There’s not doubt large, luxury SUVs like the SQ8 have a lot to gain from electrification in terms of refinement, performance and running costs. The flip-side is the extra mass of the batteries and other electrical gear but, in this case at least, there might be a silver lining there in the way the hulking SUV manages to force the air suspension into agreeable submission.

For our money, the station-wagon variant is the one to buy. It’s cheaper to begin with and with its greater luggage capacity, it simply makes more sense. Which is not to say the Sportback version is compromised in luxury, safety or performance terms, but if practicality doesn’t figure highly in any purchasing decision involving an SUV, then we sense a great disturbance in the force.

Regardless of what’s powering the SQ8, the driving experience is vintage Audi and that’s a good thing, and even that massive kerb mass can’t blunt the sort of chassis dynamics and feedback we’ve come to expect from the brand.

Some buyers will possibly baulk at the projected range and the Audi’s appetite for electrons, but when lined up side-by-side with its major competition, the SQ8 is every chance to emerge as the one to buy. We’ll need a proper comparison for that, of course, but the Audi should be on any short-list of big, deluxe, electric SUVs.

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

There’s no getting around the i5 being a rather expensive offering. More than $150,000 to get into an electric sedan that’s not much faster than a hot hatch is a big ask, but there’s plenty to enjoy about the 5 Series.

Things like its heated leather seats shouldn’t be the reason you’re willing to spend so much on a sedan when a $50,000 hybrid SUV will score you the same, instead it’s the fact the 5 Series is a delight to drive and hasn’t lost the feeling of prestige the badge has earned over the last half a century.

In terms of value - if speed isn’t your focus and you’re less of a gadget-type-operator when looking at cars like this - the 520i has the style and comfort you’d need and at $100K less than the M60.

And in terms of large electric sedans, the i5 eDrive40 is cheaper than a Porsche Taycan (by a little) or an Audi e-Tron (by a lot). The Genesis G80 Electrified is the closest cheaper rival, by about $10K, or the less powerful Mercedes EQE is similarly priced at $154,900.

Essentially, if you’re looking at a 5 Series, it might be worth considering if you really need it to be electric, but if so, there aren’t many alternatives in its category for the price.

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

Stylistically, the big news is that the SQ8 is the second model to take up Audi’s latest exterior design language. That includes the two-dimensional Audi grille logo as well as a 'singleframe' (Audi’s own word) light bar that links the matrix headlights.

The SQ8 also gets Audi’s Sport Package as part of the price of admission, and that includes black roof rails and other touches.

Of more technical interest is the way the front of the car has been designed to aid air flow around the front wheels. Controllable flaps in the front fascia as well as underbody winglets keep the air flowing around the wheels without contributing to excess aerodynamic drag at speed.

In an engineering sense, the big news is the adoption of a three-motor layout. While some manufacturers are yet to see the value in this, having a motor on each of the rear wheels means there’s no longer a need for a rear differential.

If you’ve watched other members of the BMW family go into a new generation within the last few years - the 3, 4 and 7 Series particularly, you won’t be too surprised by what you see here. Especially with the latter, having seen the petrol variants look roughly the same as the electric ones.

BMW specifically made the petrol 520i and the i5 variants look similar for egalitarian purposes - to not disenfranchise 520i buyers who are still spending a fair chunk of cash but might not be ready to go EV.

That means all three variants score a mix of new and old. The kidney grille remains and isn’t as large as on the M3 or 4 Series, while the bonnet line following it and the ‘character line’ down the car’s side also remain. And yes, the Hoffmeister kink where the C-pillar meets the passenger window’s lower corner is still there.

On that C-pillar though is a ‘5’ stamped into the bodywork, new to this generation, while the front grille as mentioned has a glowing light surround - the brand’s ‘Iconic Glow’ already seen on the 7 Series.

Overall, thanks to being slightly larger in every dimension, the new 5 is starting to look bigger than a 7 Series from a little while ago. And that’s because it is - its body is overall longer than an E65 7 Series from the mid-2000s.

It’s 5060mm long 1900mm wide, 1515mm tall (97mm longer, 32mm wider, and 36mm taller). Its wheelbase is 20mm longer too at 2995mm. 

There’s absolutely no question Audi knows a thing or two about cabin layouts and ergonomics. Like other contemporary Audis, this one features the fully customisable Virtual Cockpit with a huge range of possible displays and layouts. And again, as usual, it all works seamlessly and efficiently.

The head-up display is amazingly clear and the twin touchscreens divide the car’s tasks logically. Yes, there’s a lot going on, but compare the way the Audi applies logic to the menu strategy to the scatter-gun approach of many others, and you can see that plenty of thought has gone into this stuff.

Also, it goes without saying, of course, that there are multiple charging points as well as plenty of connectivity with good wireless connections available. That includes wireless phone changing.

The front seats are sporty but not too firm, even if they do give you a bit of a squeeze thanks to high bolsters and lots of contouring. The rear seat is likewise firm initially and is really best for two backsides thanks to the sculpting of the rear bench.

That said, it will accept a centre passenger, but that seat will be the last one occupied. Rear legroom – important in a car like this - is good, there’s enough room for your feet under the front seats and headroom, even in the allegedly racier looking Sportback, is ample if not huge.

The panoramic sunroof means there’s plenty of light to counter the dark interior colours, and the only real surprise is the amount of hard plastic on the upper part of the door trims, just below the glass. Given the acres of much plusher trim farther down the door, this seems a bit odd.

The other comment we’d make is that the SUV body simply makes more sense in terms of load carrying (569 litres plays 528) and makes more of the SUV’s claim to practicality.

The Sportback is also a bit of an acquired taste and while it’s not the first SUV-coupe mash-up we’ve seen, to many eyes, the combination never looks right. Coupe on stilts? Surely, not for everyone.

On that subject of practicality, the SQ8 bucks the trend in EVs by being able to tow up to 1800kg with a braked trailer. The factory towing pack is a $2180 option.

A longer wheelbase means more space inside, where the 5 Series also still looks fairly familiar to those who have spent any significant time in a recent model BMW.

BMW has historically been pretty bang-on with ergonomics, and the new-gen 5 does a good job of sticking to that. Comfortable sports seats and quality feel for the materials on touch points mean the 5 Series feels nice to be in, and relatively restrained interior design for a somewhat luxurious car means it looks nice too.

It’s let down only by a couple of things - its multimedia screen and Operating System 8.5 is a little less simple to use now, and requires more touching the screen than previous iDrive systems, rendering the scroll wheel less useful.

The BMW Interaction Bar too is a little tricky to see controls on, as well as lacking physical feedback for using controls. Vent flow controls are digital sliders on the Bar, while vent direction is controlled by an unusual ‘joystick’ style control nearby.

The rear seat is plenty spacious, as you’d expect from a large sedan, with climate controls and ports for charging devices in the rear.

There are three members of the new 5 Series family from launch, with a base 520i starting things off from $114,900 before on-road costs.

It’s the only petrol-powered (with mild-hybrid, we’ll come back to this) variant in the trio, but it does have a fairly extensive list of features as standard. In terms of tech and comfort, most of what comes with the 520i is available further up the range too, with the major differences being drivetrain related.

In the 520i, the interior upholstery is synthetic ‘Veganza’ leather with Alcantara, though optional Merino leather is a $4000 BMW Individual option. The front seats are heated as standard, however, and electrically adjustable with memory settings and lumbar support.

A 12.3-inch instrument display paired with a 14.9-inch multimedia display are standard across the range, running BMW’s Operating System 8.5, while a head-up display, ambient lighting, wireless phone charging tray and BMW’s ‘new’ Interaction Bar are included too - a crystalline-style strip across the dash with touch-sensitive ‘buttons’ like the climate controls.

A panoramic glass roof - unable to be opened - is standard too, while the 520i’s sound system is a Harman Kardon set-up with 12 speakers.

Exterior features are quite similar to the more expensive i5 variants, with Adaptive LED headlights, automatic boot opening, an M design kit with front and rear aprons, side sills, and BMW’s Iconic Glow kidney grille surround.

Optional in the 520i is an ‘Enhancement Package’ which adds a choice of aerodynamic 21- or 20-inch wheels, metallic paint, and a 655-watt 17-speaker Bowers & Wilkins surround sound system for $5400. One test car on the launch we attended was painted in a BMW Individual colour - Tanzanite Blue - which upped the price to $7800.

Moving up the range to the mid-tier i5 eDrive40, which starts from $155,900, adds Merino leather interior, metallic paint, Bowers & Wilkins surround sound and aerodynamic 20-inch wheels standard, but it also includes adaptive suspension and some other EV-related features.

BMW’s ‘Adaptive Suspension Professional’ comes with Integral Active Steering (rear-wheel steering) and is a step up over the M Sport suspension from the 520i, while its aero wheels function as a way to keep the electric car’s range being affected by resistance.

The eDrive40 also comes with an acoustic protection system to make ‘electric car noises’ to warn pedestrians, as well as BMW’s ‘Iconic Sounds’ for the occupants - basically a system that uses orchestral sounds composed by Hans Zimmer that are affected by acceleration intensity, speed, and drive mode.

It also comes with the standard kit for an electric car, a Mode 2 and Mode 3 charger, cable, and a five-year Chargefox subscription. 

The top-spec i5 M60 xDrive ups the cost to $215,900 and the features list again slightly (as well as being far more powerful).

Its suspension is even more advanced, adding the brand’s Adaptive M Suspension Professional with active anti-roll, plus 21-inch aero wheels as a no-cost option. The M60 also gains an M rear boot lip spoiler.

Inside, BMW’s ‘Crafted Clarity Glass’ controls in the centre console are standard, as is ventilation for the front seats and a four-zone automatic air conditioning system.

While many electric all-wheel-drive vehicles use a motor on each axle, the Audi electric 'Quattro' system here arguably goes one better with a total of three motors.

The front axle features the traditional single motor while the rear axle has two; effectively a motor on each rear wheel.

When they all chime in, they bestow the e-tron with a maximum of 370kW of power and an astonishing 973Nm of torque; more than enough to get the 2.6-tonne e-tron moving.

Enough, in fact to get the car from rest to 100km/h in a claimed 4.5 seconds and on to an electronically limited top speed of 210km/h.

A single-speed reduction transmission is fitted and drive is constantly sent to all four wheels via an electric version of Audi’s famed Quattro all-wheel-drive layout.

Suspension is by adaptive air springs and there’s adjustable (via the steering wheel paddles) regenerative braking.

Despite BMW calling it ‘electrified’, the base 520i is only a mild hybrid so most wouldn’t realise unless they were told.

Its turbocharged 2.0-litre four cylinder puts out a modest 153kW and 330Nm, with power and torque sent to the rear wheels via an eight-speed automatic transmission.

BMW claims it’ll knock over the 0-100km/h sprint in 7.5 seconds, a few seconds too slow to blow anyone’s socks off.

The mid-spec eDrive40 has a little more kick to it, its rear-mounted electric motor capable of 250kW/430Nm and able to cut that time to 6.0 seconds.

It’s fitted with an 84kWh battery to draw its power from, the same as the 442kW/820Nm M60 with its all-wheel drive dual-motor setup.

The M-tuned i5 can hit 100km/h in a claimed 3.8 seconds. Bye bye socks, perhaps.

Moving this much weight at such velocities and for such distances requires a big battery. In fact, Audi claims the SQ8’s battery, at 114kWh is the biggest in the business.

But, again, it needs to be, especially with the claimed energy consumption of a hefty 28.8kWh per 100km for the SUV version and 28.0kWh per 100km for the slightly slipperier Sportback.

That gives a theoretical range of 417km for the SUV and 430 for the Sportback, both of which are numbers some potential buyers won’t consider sufficient.

But those same people should consider the fact that in a mix of winding country roads and some freeway running, we were able to beat those consumption claims, recording closer to 26 or 27kWh per 100km which, if nothing else, suggests the published range figures might be somewhat closer to reality than the EV (or any other segment of the car industry) market typically gets.

The standard charger runs at 11kW but on a 10-amp household socket, home charging will be limited to 7.2kW, although an optional 22kW charger ($6900) is also available from Audi.

The DC charging is the highlight, however, and the SQ8 can cope with charging speeds of up to 170kWh, meaning it can theoretically get from 10 per cent to 80 per cent charged in about 31 minutes on a commercial charging station with enough grunt.

BMW claims the petrol 520i sips 6.7 litres per 100km from its 60-litre fuel tank, though we were unable to independently test any of the claimed figures on the launch day.

The base car has a theoretical range of 896km if it was possible to achieve the claimed fuel consumption figure for the duration of the whole tank - but it isn’t and realistically you could knock about 20-30 per cent off that, depending on how enthusiastically you drive.

In the i5 variants, the same 84kWh battery provides slightly different ranges due to the eDrive40 using 16.56kWh per 100km, and the M60 using 18kWh.

The eDrive40 has a claimed 550km maximum range, while the M60 has a 506km figure thanks to its extra motor and weight.

Almost a thousand Newton-metres (not to mention 370kW) infers some pretty serious performance and so it is.

When you press down on the throttle pedal, there’s an instant and somewhat furious response from the driveline. And just as the Audi’s touchscreens have been calibrated to respond on a human scale, so too have the major driving controls.

That said, while there’s more acceleration on tap than most drivers will ever have experienced, the SQ8 doesn’t move forward with quite the irresistible force the bald numbers might suggest.

And that’s purely down to the thing weighing the wrong side of 2.6 tonnes. Sure, Audi claims 4.5 seconds and that seems fairly believable, but it’s not quite as ballistic as some other current EVs.

Still, that’s hardly its mission in life, anyway. Top speed, in the interests of thermal management, has been limited to an entirely understandable – not to mention adequate - 210km/h.

But one thing all that kerb mass has (arguably) done is make the suspension work properly. Speaking purely personally, until I’d sampled the SQ8 over a variety of bitumen joins, potholes of all sizes and even clattering level-crossings, I was yet to drive a passenger car on air suspension that worked as well as the brochure claimed.

Historically, air suspension has been okay on smooth roads and even sometimes bigger lumps and bumps. But it usually fell short of expectations on small amplitude, high frequency stuff that made the suspension judder and stutter. Not this Audi.

Even on the 'Dynamic' setting, the ride never falls beyond plush although you will notice a little more stiffness being dialled into it by the computer.

The best advice is to leave it in the 'Comfort' setting where there’s still lots of roll and pitch control, yet an even higher degree of suppleness that fundamentally refuses to be beaten by a lack of post-Covid road maintenance. And this from a car that rides on 22-inch wheels and tyres.

Perhaps compressed air doesn’t scale in a linear manner, making the addition of a couple of tonnes of sprung mass a positive, rather than a negative.

The other thing Audi has done well to maintain is that almost indefinable corporate steering response.

It’s kind of muted this time around in terms of its ability to talk to you, but there’s still an over-arching Audi-ness to it with an instant pointiness without the frenetic feel often associated with a quick ratio and sticky tyres.

For some cars, the list of features is what really separates the variants, but that’s not the case for the 5 Series. As is a bit of a BMW tradition, the drivetrains dictate the different trim levels and prices, and there are three fairly distinct flavours of 5 Series.

Starting at ground level, the 520i might at first seem like a bit of boring vanilla. Except it’s actually quite smooth and light vanilla.

There’s not a lot to write about when it comes to its drivetrain, but the lightness of its engine and petrol tank combo when compared to EV batteries and motors is refreshing, and makes for a quite dynamic rear-drive sedan.

Its 153kW and 330Nm is delivered smoothly enough with the mild hybrid assistance doing a little in helping responsiveness, but without intervening in the gearshifts it doesn’t feel particularly keen.

It lacks the ride comfort of the i5’s adaptive suspension, but it’s able to be driven in a spirited manner that belies its size and even, to some extent its 1725kg kerb weight. Chocolate sprinkles on the vanilla, if you like.

It’s not fast, but it feels nimble compared to its electric siblings and can carry a fair bit more speed through corners, after which there’s room to notice its rear-drive characteristics.

It’s especially noticeable after getting out of the 2130kg eDrive40, though the extra power from its 250kW/430Nm motor makes for some more spirited acceleration and a little more excitement when exiting a corner, especially if you’re aiming to double-check if it really is rear-wheel drive. There’s a little more than choc-topped vanilla going on here.

The steering is, like in the 520i, direct and responsive, though in most cases is probably best set to ‘comfort’ rather than ‘sport’ in its settings. 

The eDrive40 is rather comfortable and capable when barrelling through twisty backroads, and doesn’t feel out of hand for a five-metre-long sedan. It holds its weight well, and telegraphs when you might be approaching the limit quite sensibly.

When considering that, then, it’s impressive how brutally capable the 2305kg M60 is.

Here, we’re looking at a double-choc fudge with extra choc, and maybe some cookie dough in there for good measure. There’s a lot to like, but boy is it heavy.

It’s 580kg (or exactly half a Peugeot 208 GTi) heavier than the 520i, but it feels quick on its feet and its anti-roll seems to do a lot in terms of dynamics, the limiting factor really seems to be its tyres (which can and will squeal quite quickly to let you know when approaching said limit).

While you’ll need to take caution with how much speed you approach a corner with, you’re not going to lack acceleration on the other side, its all-wheel drive being less ‘fun’ but more efficient at getting you away from the bend than in the rear-drive eDrive40.

That adaptive suspension does also translate to a comfortable ride on relatively rough roads - only particularly bad bumps will reveal how much weight and pressure is being placed on each corner of the big sedan.

ANCAP hasn’t crash tested the new 5 Series. The last generation was a five-star car and it would be unusual to see that change with additional safety features - even with stricter testing.

The 5 Series comes with BMW Driving Assistant Professional as standard, with active cruise, lane assist and departure warning, front and rear cross traffic alert, collision prevention and intervention systems - in fact BMW says it has about 40 safety systems including an augmented reality dash display.

Its list of airbags includes front and side airbags for driver and passenger including one between the two occupants, as well as curtain airbags front and rear.

Audi’s factory warranty is a good, but no longer remarkable five-year/unlimited warranty on most of the SQ8.

The exception is the battery which is covered by a six-year/160,000km warranty. Audi will also come to your home and connect the standard 10-amp charger and there’s an Origin Energy green power offer that comes with it.

Charging is taken care of for the first six years with a Chargefox subscription as well as Audi Connect. You’ll also get six years of free roadside assistance and the first six years of standard servicing are also included.

The SQ8 also makes good on the EV promise of less maintenance with service intervals every two years or 30,000km, whichever comes first.

BMW has a fairly industry-standard five-year/unlimited kilometre warranty on its new cars, while its electric car batteries are covered by an eight year/160,000km warranty.

For servicing, BMW offers numerous discounted packs and deals based on your preferences and desire to pay upfront.

For the 5 Series, a five-year/80,000km basic service package is $2400, though the i5 will have different needs and lower servicing costs not yet listed by the brand.