Audi S4 vs Mercedes-Benz Eqa350

What's the difference?

The S4 and S5 range continues to represent a great formula for performance you can live with every day. They're arguably the sweetest balance Audi produces, actually. All come fantastically equipped, with cabins that feel truly special, and we’re lucky they can be had in a choice of five bodystyles.  

On one hand, the EQA 350 4Matic has the styling, interior presentation, forceful performance and handling prowess to make you forgive its very expensive price tag, especially when so many rival EVs are also so talented.

But there’s too much that’s ordinary about this Mercedes to justify its huge ask, including a lack of that final polish in the way it drives and rides.

Despite being a recent release, the EQA is already feeling beyond its age. For the money, the 350 4Matic feels out of its depth.

The S4 sedan and Avant have scored the bulk of design updates, with all new and recontoured side panels including the sedan’s C-pillar matching what was applied to the A4 earlier this year. 

This is paired with new front and rear facias and lighting for a subtle but extensive rework of the fifth-generation S4’s conservative look. 

The S5 Sportback, Coupe and Cabriolet get S5-specific new lighting and facias, but no sheetmetal changes. As before, the Coupe and Cabriolet ride on a 60mm shorter wheelbase than the Sportback, sedan and Avant.

The S5s also get Matrix LED headlights as standard which do a neat animated sequence when you unlock the car. 

Other visual hallmarks include new S4-specific 19-inch wheels, with S5 stepping up to its own unique 20-inch wheel. The six-piston front brake calipers are appropriately painted red, and there’s S-specific adaptive dampers under there too. All variants aside from the Cabriolet get a lip spoiler on the rear.

On the inside, there’s a new centre console and bigger 10.1-inch multimedia screen, while the Audi Virtual Cockpit driver instrument display now offers a hockey stick-style rev counter in additional to traditional dial layouts.

A high-riding hatchback (its handy 209mm ground clearance is only 4.0mm shy of the GLA equivalent), the smooth and handsome EQA is like an EQC that’s been left in a tumble dryer for too long, shrinking into its smaller proportions.

Along with the EQA's obvious electric powertrain inclusion, differences compared to the GLA include a blanked-out grille, a redesigned bumper, fresh wheel styles and a full-width LED tail-light treatment. 

All add some character to the rather amorphous donor car.

The biggest practicality change among the five S4 and S5 variants is their upgrade to the latest version of Audi’s MMI multimedia system, which steps up to a 10.1-inch touchscreen and drops the scroll wheel from the centre console.

It also boasts ten times the computing power of the version it replaces and uses this and an on-board sim card to access Google Earth maps for navigation and Audi Connect Plus that offers driver information such as fuel prices and parking information as well as point of interest search and weather information, plus the ability to make emergency calls and seek roadside assistance.

There’s also a wireless phone charger, but using Apple CarPlay will still require a cord as per Android Auto.

I only drove the S4 Avant and S5 Sportback at their media launch, which are clearly the most practical of the five, but from our experience with the previous versions, each looks after its occupants well in terms of space and storage. Back seat accommodation is clearly not a priority in the Coupe and Cabriolet, but there’s three other variants if that’s what you’re looking for. 

The Cabriolet can open its automatic folding soft top within 15 seconds, at speeds of up to 50 km/h.

Like the second-gen (H247) GLA, the EQA sits up high, offering lofty seating. That’s core to this range’s appeal, making getting in and out a less acrobatic feat compared to smaller and lower EVs.

The cabin is very similar to many of the second-generation MFA2 transverse-engine/front-drive-based Benzes like the current A-Class. That means solid looking and feeling doors and dash, upping the sense of quality. Very on-brand stuff.

This is a very modern and inviting interior, with those aforementioned screens set within a large rectangular binnacle. To the centre there are the trio of turbine-style air vents that still bring a spark of joy to the cabin (as well as seriously effective ventilation), along with the row of metallic toggle switches; both provide pleasing, high-quality sensory experiences.

It can lean towards overkill with a trashy night-club ambience if restraint is not exercised with the (configurable) coloured light show dotting the EQA's cabin. 

Not to everybody’s liking, but thankfully you can turn that stuff off, so no complaining necessary here.

You wouldn’t call the EQA particularly spacious with its curvy roof, snug sports seating, high waistline, narrow glass areas and thick pillars, but even 200cm-tall people should find enough legroom up front. There’s a sense of cosiness rather than crampedness.

The 350 4Matic’s sports seats do a great job holding and caressing you in, providing excellent bracing through tight corners. Three’s ample (powered) adjustment, including for lumbar and lower-back areas, as well as enough support for thighs. The cushions themselves are typically firm yet comfy. And the seats look great. 

The driving position is superb, ahead of a set of vibrant digital instrumentation choices that run the gamut of tastes, with the 'Classic' dial-like look and minimalist settings (reminiscent of Saab in its essentials-only display) included, so as to not scare away traditionalists. There is also a 'Progressive' screen that’s colourful and techy, though the info presented is a lot to take in.

What may not please conservative Benz buyers are the cheap-looking plastics dotted throughout the interior, along with the rattles that are regular companions, especially over less-than-smooth roads. 

This has been a bugbear of all MFA-platform vehicles for more than a decade now, and while better than in some previous models, the EQA at $100K should possess vault-like build quality, not squeaky trim.

And when will that small and flimsy gear selector stalk be binned?

Our test car’s ‘Hey, Mercedes’ voice control system was erratic at best, barely providing any assistance and regularly annoying/entertaining with misunderstood responses and laughably limited functionality. Was our example glitchy? Perhaps.

Storage is good. And, ergonomically, everything’s within reach of the driver, but there’s a lot to take in, with scattered switchgear.

It’s also worth noting that, if you’re new to the MBUX multimedia system, taking the time to learn its many functions and capabilities is advisable, as it’s more logical and simpler than the intimidating first impression suggests. 

A deft thumb is required for the steering-wheel spoke-actuated tabs for instrument data, but even technophobes ought to master it all eventually. 

The central part of the screen can be swiped to access the vast array of features, including the excellent audio system and detailed vehicle control settings.

Further back, passengers sit up high, giving a wide view of what’s happening up front, while the backrest is angled at just the right position. 

There’s not much fun to be had sitting on the raised middle bit, and shoulder space is seriously limited with three abreast, but otherwise, even adults should find sufficient legroom and headroom – even with the panoramic sunroof fitted.

Deep door pockets, face-level air outlets, reading lights and a folding armrest are to be found back there, though the latter includes a flimsy slide-out cupholder set that’s not worthy of the brand. 

Because there’s a battery pack in the rear half of the EQA, cargo capacity shrinks from the donor GLA's 435 litres to just 340L, while dropping the 40/20/40 backrests extends that into the cabin for a 1320L load space. Note there’s no spare wheel, just a tyre inflation kit.

People don’t buy these small crossover Mercedes models for space or practicality – that’s why the GLB/EQB exist – but the EQA isn’t too bad for the urban demographic which wants/needs a compact, high-riding EV with impressive ground clearance.

Does it represent good value for the price? We’re not so sure.

Starting from $96,900, before on-road costs, the EQA 350 4Matic all-wheel drive (AWD) costs over $15,000 more the established EQA 250 front-drive version.

That’s a lot of dosh, even in the world of expensive EVs, given that’s nearly in Tesla Model 3/Y Performance, new flagship Kia EV6 GT and range-topping Hyundai Ioniq 5 Epiq (with change) territory.

These are bespoke electric vehicles in that they’re designed from the ground up to be electrified, not internal combustion engine (ICE) models modified to take electric motors and batteries, as the EQA is. It doesn’t take much imagination to see the popular GLA small-car/crossover behind the badge.

The same applies to the GLB-based EQB, which at least offers a seven-seat version in the base 250, giving it a unique selling proposition. The 350 4Matic benefits from no such advantage against its fierce volley of foes.

Additionally, the Mercedes must battle some pretty impressive yet cheaper ICE-based EV AWD rivals, including the Volvo XC40/C40 Recharge Twin fraternal twins, Polestar 2 Long Range Dual Motor and coming BMW iX1 xDrive30.

As the Stuttgart EV isn’t measurably ahead and is sometimes even behind these in performance, efficiency, range and charging capacity, its pricing seems needlessly steep.

Unfortunately, the 350 4Matic isn’t brimming with extra standard features to compensate, either.

Along with that second motor and AWD, your $15,200 premium over the 250 scores an AMG makeover inside and out, with an AMG Line Sports exterior treatment, 20-inch AMG alloys, AMG interior trim with synthetic leather and suede seat material, a leather AMG steering wheel, aluminium pedal covers and a top-stitched dash.

The 250’s optional 'Vision Package' is also thrown in, bringing a panoramic sunroof and surround-view camera.

You’ll also find dual keyless entry/go, electric and heated front seats, dual-zone climate control, ‘Hey, Mercedes’ voice control, a wireless smartphone charger, two 10.25-inch screens (for instrumentation and multimedia touchscreen), Bluetooth connectivity, wired Apple CarPlay/Android Auto, digital radio, satellite navigation, 10-speaker audio, ambient lighting, a powered tailgate and adaptive dampers.

On the safety front there are LED headlights with high-beam assist, autonomous emergency braking, blind-spot monitoring, lane-keep assist, adaptive cruise control, evasive steering assist and parking sensors all-round.

However, items that can dial up the glamour for potential buyers in EQA adverts, also cost thousands of dollars extra, such as a head-up display, hand gesture activation for several vehicle functions and the 'MBUX' augmented reality for navigation.

There’s a Wallbox from $1710 (before fitment) for personal parking-space charging, bringing a Type 2 AC Charger, 22kW single-phase and three-phase charging. 

A free Chargefox subscription is also part of the deal. But are all these enough?

Audi has taken an ‘if it ain’t broke’ approach with the mechanicals, with all S4 and S5 models unchanged with this update. So the centrepiece continues to be the single-turbocharged 3.0-litre V6 that produces 260kW and 500Nm, with the latter available from a broad 1370-4500rpm.

The rest of the drivetrain is also unchanged, with the venerable but excellent ZF eight-speed torque converter auto paired with the Quattro all-wheel drive system that can send up to 85 per cent of drive to the rear wheels. 

The EQA 350 4Matic features an asynchronous motor and a single-speed reduction gear transmission under the bonnet, delivering 140kW of power and 385Nm of torque to the front wheels, and supported by a second, permanently excited synchronous motor located on the back axle.

'Dual E-motor' total outputs are 215kW between 7130-9506rpm up front and 5746-7661rpm for the rear motor, for a 520Nm torque total, from zero rpm. 

Drive is infinitely variable on both axles, for AWD capability. Tipping the scales at 2091kg (kerb), the 350 4Matic’s power-to-weight ratio is an impressive 103kW per tonne.

Result? Some six seconds is required to race from 0-100km/h, on the way to a 160km/h top speed.

The EQA employs a 66.5kWh lithium-ion battery pack fitted between the axles, with a maximum 11kW AC and 100kW DC charging capability.

Suspension is via MacPherson-style struts up front while a multi-link arrangement is out back. Steering is by electrically assisted rack-and-pinion.

Official combined fuel figures range from 8.6L1/00km for the S4 sedan to 8.8L/100km for the Avant, Coupe and Sportback, while the heavier Cabriolet steps up to 9.1L/100km. 

All are pretty good considering their performance potential and the size of these cars, plus the fact that they only require 95 RON Premium Unleaded fuel.

All have a 58-litre fuel tank, which should enable a range of at least 637km between fills based on the Cabriolet’s figure.

Using WLTP figures, the EQA 350 4Matic’s official consumption figure is 17.9kWh/100km. Maximum range is rated at 400km.

At pick-up, our EQA was displaying a 395km maximum range availability. After 273km of a mix of city, urban and freeway driving, our car showed 47km of range left, which means we could expect up to 320km in real-world driving scenarios. 

That did include some performance testing, which tends to suck out the kilowatts, by the way.

Our trip computer showed the vehicle had consumed 20.8kWh/100km on average.

Like the EQB, the EQA offers varying levels of energy recuperation to help recharge the battery pack. In ‘D Auto’ it figures out the level of resistance automatically, but drivers can also choose to do this manually via ‘D+’ that provides coasting, ‘D’ that brings mild regeneration off-throttle, and ‘D—’ that activates maximising regen for close to single-pedal driving. These are paddle activated.

Cables for home charging with three-prong outlets are included – an eight-metre long one plus a five-metre public charging cable.

Mercedes says a 100kW DC charger will take an EQA from 10-80 per cent charged in 30 minutes, while an 11kW AC public outlet needs seven hours, and at home using a regular 3.0kW 10-amp socket requires at least 34 hours.

Mercedes also offers a Wallbox with up to 22kW charging capability for your home or office from $1710, not including installation. That drops the charging time to under eight hours, which is ideal for overnight-home or all-day work charging scenarios.

The S4 and S5 range were already an excellent balance between everyday comfort and a genuine sporting edge, and nothing has changed with this update.

I spent time behind the wheel of the S4 Avant and S5 Sportback at their media launch, and both managed to deliver the proper Audi luxury experience over some pretty rough rural roads, while always feeling a bit more sporting than a regular A4 or A5. That’s with the Drive Select left in the default mode, but you can shift that sporting personality up a few notches (while scaling back the comfort), by selecting Dynamic mode. 

My preferred means of adjusting their personality is by simply tugging the transmission selector back to activate S mode, which livens up the engine and transmission without stiffening up the suspension. 

Across the five S4 and S5 bodystyles, there is some variance in performance potential, with the S4 sedan and S5 Coupe topping the performance chart with 0-100km/h boasts of 4.7s, with the S5 Sportback trailing them by 0.1s, the S4 Avant by a further 0.1s and the Cabriolet managing a still-fast 5.1s claim.

Another area I consider the S4 and S5s to get just right is their exhaust note. It is adaptive, but there’s nothing synthetic about it, and the generally muted and distinctly V6 burble is always there to remind you that you’re aboard a proper performance model, but not in such a way that it will annoy you, or your neighbours. Polite performance, if you will.

Probably the most impressive thing about the EQA 350 4Matic is how effortless, easy, and fun it is to drive, whether around town or out on the open road.

Slot the flimsy drive selector to D and this wastes no time moving off the line, streaking past 100km/h even more swiftly than the 6.0s official time suggests. 

The Mercedes powers along with strong acceleration available at all times. With such instant torque on tap, this is a treat weaving through traffic, zipping into rapidly closing gaps like a little go-cart.

At slower speeds, even in slippery conditions, the 350 4Matic feels glued to the road, possessing tons of grip wearing Pirelli P Zero 235/45R20 rubber, to help it carve through without breaking a sweat, pulled along by endless torrents of torque. Just a slight flex of your right foot has this car bounding ahead in no time.

Armed with nicely weighted and responsive steering and a planted yet agile chassis, all the makings are present for a premium electric hot hatch experience. 

However, there’s just a bit too much weight, which seems to manifest itself in somewhat top-heavy handling at higher speeds or through fairly tight corners. 

In such conditions, the Benz feels a bit nervous and a tad skittish, and not quite as composed as we’d hoped.

Disappointingly, while there’s regenerative braking using the steering paddles, it doesn’t quite bring the car to a full stop, but instead slows it down with enough force to wipe off most but not all of the speed. You can’t rely on full stop/go single-pedal braking, then.

Finally, there’s the suspension’s ability to cope with our patchy road surfaces. Over big bumps, ride comfort is fine, but smaller-frequency ones are all-too-often felt. 

There’s an underlying firmness to the chassis tune that’s in keeping with the EQA’s German heritage, but we expected more suppleness and isolation in a high-riding SUV equipped with adaptive dampers.

Plus, there’s more tyre/road noise than we’d like.

So, as a sprightly urban runabout, the EQA is ideal, with forceful acceleration and a slick powertrain. Backed up by the security of AWD, the 350 4Matic is great in inclement weather, too, with exceptional roadholding dynamics. But it isn’t quite as agile nor sophisticated and refined as we’d like a $100K Mercedes EV to be.

On the ANCAP website, a EuroNCAP-tested EQA scored a five-star crash-test safety result. This was conducted in 2019.

Included is Mercedes’ 'Driver Assistance Package' that features, among other safety items, autonomous emergency braking, blind-spot monitoring with an exit warning that alerts the driver to approaching cyclists or vehicles if the door begins to open into their path, lane-keep assist and adaptive cruise control, as well as evasive steering and a ‘Parking Package’ featuring front and rear parking sensors and a surround-view camera.

There are also nine airbags, made up of front, pelvis side and window bags for driver and front passenger, and side and curtain airbags for rear occupants. There’s also a knee airbag for the driver.

The AEB with forward collision warning works between 7.0km/h and 200km/h, and offers pedestrian and cyclist protection day or night. The 'Active Lane Assist' tech operates between 60km/h and 200km/h.

The EQA makes a sound for pedestrians and other warns other road users that’s audible at speeds below 20km/h, plus a reversing tone.

Along with a trio of child-seat tether anchorages, the EQA’s rear seat base is fitted with two ISOFIX attachments.

Audi continues to offer a three year, unlimited kilometre warranty, which is in line with BMW but lags behind the five years offered by Mercedes-Benz these days. This also contrasts with the five year norm among mainstream brands, which is punctuated by the seven year warranties of Kia and SsangYong.  

Service intervals are a convenient 12 months/15,000km though, and the same five year ‘Audi Genuine Care Service Plan’ offers capped price servicing for the same $2950 total over five years applies to all S4 and S5 variants. This is only marginally more than the plans offered for regular petrol A4 and A5 variants, so you’re not being stung for the thoroughbred versions.

Mercedes-Benz offers a five-year/unlimited kilometre warranty.

The battery pack warranty is also industry-standard, valid for the usual eight years/160,000km. Service intervals are every year or 25,000km.

There is no capped-price servicing, however buyers can purchase up-front when new to save money. 

The EQA 'Service Plan' starts at $1600 for the first three years/75,000km (whichever occurs first), $2200 for four years and $2650 for five years.