BYD Sealion 7 vs Mercedes-Benz Eqa350

What's the difference?

The BYD Sealion 7 Performance is well-priced and well-equipped. It more than holds its own against its mid-size electric SUV rivals. It has great motor outputs and it handles comfortably on the road. There's a lot to like here but some of the technology needs to be tweaked.

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.

It may be named after a sea lion but it doesn’t resemble the blubbery cuteness of the creature itself. However, its sleek dynamic styling and performance outputs do call forth some of the creature's water prowess. 

This prowess is hinted at by the 20-inch alloys which are fitted with Michelin tyres and red brake calipers. There’s some Porsche-like design notes in the wide swoopy nose and LED headlights. The rear is also quite handsome with its long LED band strip and narrow window giving it a sporty silhouette.

Head inside and the Performance showcases the best BYD cabin I've sampled. There are no strange accents or panelling like there are in the Atto 3. This proves that BYD can do premium well.

The quilted leather upholstery feels supple underhand and the sports seats with integrated headrests reminds you what it can achieve in a sprint.

The swoopy design is carried over inside with the door panels. The dashboard is simply styled but headlined by an enormous 15.6-inch display that can rotate between landscape or portrait mode. Some may liken it to an iPad but it works.

The panoramic sunroof keeps things bright and cheerful but there are some simplistic elements that are hard to ignore. Like the lack of buttons, minimalist mirror cover design on the sunvisors and a rather plain-looking centre console.

Everything else flows and my favourite feature inside is surprisingly the lever door handles! They're functional but cute.

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 cabin has space, space and then more space. Passenger comfort is all but guaranteed with the available leg- and headroom in each row.

The functions for the electric front seats means it's easy to find a comfortable position. Door apertures are wide for each row and despite a relatively low 140mm ground clearance, it's still an easy SUV to slide in and out of.

Technology looks great and the large 15.6-inch multimedia display is what catches your eye first. Graphics are sharply rendered and the touchscreen responsive. There's a lot of information and menus embedded into the display which means it's a system that will take you a beat to get used to.

It's not unique but the in-built voice assistant rarely works as it should and needs some work. Also, because of the lack of buttons and dials, all functions are accessed via the screen. I don't like this because it tends to draw your eyes from the road far more often than it should and some functions - like the heat and ventilation for the front seats - are buried in a few menus.

There is wireless Apple CarPlay and Android Auto but there are some gremlins that need to be ironed out. The connectivity is easy enough but the steering wheel mounted phone control didn't access Apple CarPlay. So, I couldn't hang up my phone call properly, it would instead access the Bluetooth phone menu and dial my last call. I had a few 'butt' dials this week because of it.

Storage is on par with the Performance rivals and up front the burden falls across the large glovebox and middle console but there is also a shelf underneath the centre console for bigger items, like a handbag. There are two phone cradles, although only one offers wireless charging, and two height-adjustable cupholders two drink bottle holders and small storage bins.

In the rear, you get two device pockets and a map pocket on the back of each front seat. There is a fold-down armrest with retractable cupholders and a small storage pocket (think Kindle-size) and there are storage bins in each door.

The boot capacity is a decent 500L and the floor can be adjusted to two heights, one offering a level loading space. There is also a frunk storage of 58L for any cables or random bits you don't use often. Under the boot floor there is also enough room for cables and the tyre repair kit. The powered tailgate can be access via your keyfob as well.

For a flagship grade, I would have expected a few extra amenities in the rear, like climate control and sunshades but it does have directional air vents, reading lights and a USB-A and C port.

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?

The Performance is all-wheel drive and is fully electric with dual motors, a squirrel cage induction motor located at the front and a permanent magnet synchronous motor at the rear. Together they produce up to 390kW of power and 690Nm of torque.

This gives the flagship grade a 0-100km/h sprint time of just 4.5 seconds. There’s obviously ample power to be had here which will delight EV fans who like that tummy-falling sensation when accelerating.

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.

The Sealion 7 Performance has a blade battery with a large 82.56kWh capacity which supports a 456km WLTP driving range. This isn’t terrible for city drivers but a regional driver will likely want a longer range. BYD includes a portable charging cable with the model.

Charging is sorted via a Type 2 CCS charging port which accepts up to 11kW on an AC charger and up to 150kW on a DC charger. On a 150kW DC charger, you can go from 10 to 80 per cent in as little as 32 minutes and that increases to more than eight hours on an 11kW AC charger. All of the figures are quite good and help with the general day-to-day convenience.

The official energy consumption figure is 20.4 kWh per 100km but after doing a healthy mix of open-road driving and city stuff, my average has popped out at 19.1kWh. I reckon it's a solid result for a ‘performance’ grade but I didn’t find the regenerative braking to be particularly strong on this model.

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 Performance grade offers plenty of power that is delivered wickedly quick without feeling overwhelming when you have to accelerate. You still feel in control, which is very important when you have outputs like this does.

The steering is responsive and light enough for quick lane changes. The general on-road handling is quite refined but there is more roll in corners than you’d expect and this is the only time the power can make the handling feel a tad wobbly.

Surprisingly, there isn't a one-pedal function and the regen braking isn’t particularly strong. It’s difficult to ‘creep’ forward in this in stop/start traffic where it can feel a bit jerky at times, so it handles best on the open road.

Visibility is mostly good but the rear window is narrow and a digital rear-view mirror would have been welcomed in this model. Suspension is sports-firm but forgiving over bigger bumps. 

The 360-degree view camera and surrounding sensors makes this super easy to park and honestly, you shouldn’t have any trouble manoeuvring the Sealion 7.

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.

The Sealion 7 is covered by a six-year/150,000km warranty which is good for the class. The battery is covered by an eight-year/160,000km warranty which is a normal term.

The Sealion 7 gets a 10-year capped price servicing but it’s expensive compared to some of its peers at $4157.

Servicing intervals are spaced at every 12 months or 20,000km, whichever occurs first.

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.