BYD Dolphin vs Mercedes-Benz S400

What's the difference?

Chinese manufacturers have been impressing us lately with the strides they’ve been making, and BYD is no exception with its Dolphin.

Not only does this hatch help bring the price down for prospective EV buyers, but it leaves a solid impression of a cohesive, well-built car, which is also quite a bit of fun to drive.

It’s not the fastest, nor is it the most practical, and there are a handful of downsides to its design and software, but when it comes down to it, this is simply a great value entry-level electric car.

The 2018 Mercedes-Benz S-Class remains a technological tour de force, a luxury sedan to be reckoned with - one that has safety, technology, comfort, finesse and performance all rolled into a stylish package. 

It's hard to see why you'd need anything more than the S 350 d, which is now much more attractively priced. It'd be my pick, but I'd have to get the Energizing Comfort Control package, and probably the AMG styling pack, too. And even then it would cost less than its predecessor.

You wouldn’t know it in Australia, but BYD has a huge and diverse range of vehicles with lots of different styling approaches in its home market of China.

The cars we get here, though, consisting of this Dolphin hatch, the Atto 3 small SUV, and the upcoming Seal sedan all seem to share more or less the same curvy, futuristic theme.

Contemporary touches on the exterior of the Dolphin include the bar light and full ‘Build Your Dreams’ typeface embedded in the rear, the blocky gloss black alloy wheels (17-inch on the Premium we tested), the two-tone colour scheme, and of course, the grille-free face.

Short overhangs and a tall body seal the EV deal, with the Dolphin looking closest in its aesthetic to something like the Volkswagen ID.3 than anything else on the market. It perhaps won’t be for everyone - it’s a little more experimental than the more conventional look worn by the MG4 - but then, for others this distinctiveness may be a selling point.

The interior look and feel is the biggest surprise. Somehow, the Dolphin, despite being more affordable than its larger Atto 3 sibling, feels a cut above when it comes to its design theme and build quality.

The weirdly organic touches designed to mimic muscle fibres in the Atto 3 have been traded out in favour of something a bit slicker.

I really like the material choices here. The use of neoprene across the lower half of the dash, in the doors, and down the centre of the seats feels a lot less pretentious than the standard synthetic leathers you usually get at this price-point, and there’s an agreeable mix of plastics as well as gloss and matt finishes. 

The nods to this car’s name which are present are a bit more toned down and fit with the design in a more subtle way.

The floating door handles, designed to resemble a fin, are a much nicer piece than the weird rotary ones in the Atto 3, and the wavy touches across the top of the dash aren’t too in-your-face and add an element of intrigue. I like it much more than I expected to.

It’s clear this space is designed around the giant multimedia panel, for better or worse. It looks spectacular, it’s nice and sharp, and the software, which looks as though it’s trying to emulate Tesla, does a pretty good job.

It’s quick, sharp, colourful, and has nice large iconography to jab at while you’re on the move, although some of the driving settings are ambiguously labelled and require clicking through to a sub-menu to alter. You’d get used to it, but it isn’t as slick as a Tesla operating system.

It also rotates, because of course it does, although one quirk I found with this is the polarised coating on the screen made it impossible to see when in portrait mode if you were also wearing polarised sunglasses.

Also, Apple CarPlay doesn't work in portrait mode. A gimmick? You decide.

The floating physical rotary controls jutting out below are a also a brilliant little piece of design. On one side you have your gear shifter, and on the other you’ve got your volume control, between them there are core functions, an on/off switch and an auto button for the climate, as well as the hazard light and drive mode controls.

It would be nice to also have a fan speed and temperature toggle, as these functions can only be used through the touchscreen, but there are worse offenders for clumsy climate controls on the market.

I swear it has been facelifted, and the changes are bigger than they might appear. There is no doubt that the S-Class shape is largely unchanged, but the German company has kept the modifications minimal in the scheme of things.

That doesn’t mean those changes are unnecessary, though. The new headlights, for example, are standard on every model, and are constructed with 84 LEDs (including three for the daytime running lights), and of course they’re adaptive with automated high-beam - meaning they’ll shield other road users from the glare of the lights at night. And the lights themselves will throw a main beam up to 650 metres, according to the company. 

Other things are slightly more cosmetic, like the revised three-bar grille treatment, new front and rear bumper designs that feature broader sculpted sections to widen the stance of the car, and there are new LED tail-lights as well.

The smallest set of wheels used to consist of 18-inch rims, but now the base car rolls on 19s, while the rest of the expansive range sits on 20s. 

The inside has seen some changes, too, but the appearance of things in the cabin isn’t the focal point - its the usability of the technology that's the big change. 

Oh, but I should tell you there are now 64 ambient lighting colours to choose from, which is up from seven, and now you can also set the lighting in three different zones - so theoretically you can have blue, orange and green areas of the cockpit, if you’re gross.

The clever design bits don’t end with the controls and themed motifs, either. While the Dolphin’s cabin feels a bit smaller than many of its rivals (because, physically, it is), efforts have been made to make it a versatile space. 

There are plenty of little storage areas throughout. There’s the floating one below the touchscreen, which suits wallets and sunglasses. There’s one with a roll-out cover set low below the controls which is good for smaller objects you don’t want moving around the cabin.

A large cubby is located underneath the armrest between the two seats for bigger objects and a slick wireless phone charger cut out from the top.

The two centre bottle holders are a little small, as are the cut-outs in the doors, so if you’re negotiating with an XL takeaway soft drink you might run into trouble.

The dark theme for the interior in our car doesn’t help the more closed-in feel, but the standard panoramic fixed sunroof (mercifully with a rolling shade) helps to keep the space airy.

I found it easy to set up my driving position, another clever touch being the little digital instrument panel perched on the steering column, so no matter how you adjust it you can always see it.

I was a little concerned the rear seat would be tiny, because this car doesn’t look big from the outside, but I was most definitely wrong.

Behind my own seating position, at 182cm tall, I had leagues of knee room and plenty of space for my feet thanks to the flat floor. I also had sufficient but not stellar headroom, and the soft-touch materials continue into the doors and seat trim.

I will say, the abundance of synthetic leather is much more evident for rear passengers, but it feels like a minor complaint.

Again, the bottle holders in the doors are tiny, but at least the ones in the drop-down armrest are generous. The middle seat is very useful thanks to the flat floor, although there are no adjustable air vents for rear passengers.

The backs of the front seats have a variety of pockets in different shapes and sizes, and there are USB-C and USB-A ports on the back of the centre console, alongside a bizarre centre bottle holder which is on an angle.

Boot space is 345 litres if you move the false floor to its lowest position. I was just able to squeeze in the three-piece CarsGuide luggage set with a bit of fiddling around.

With the second row down, room expands to 1310L, and you can bring the false floor up in the boot to make the load area flat.

The space underneath is quite good for storing charging cables and such, but keep in mind the Dolphin doesn’t offer additional frunk storage.

What it does offer is a vehicle-to-load adapter, which lets you power household appliances via its external charging port. Neat, and rare at this end of the EV market.

If you’re buying a Mercedes-Benz S-Class there’s a good chance you’re more interested in the back seat than the front: you could be buying it for a business, or you could like to be driven around - and there are definitely worse places you could be.

We would suggest, though, that the best place you could be if that’s your caper is in the back of a long-wheelbase S-Class model, which has extra legroom. 

And if you happen to be in a LWB model with the 'Business Class Package', you’ll enjoy two individual rear seats rather than a three-seat bench, folding tables for your bento box or laptop, and an ‘executive seat’ on the passenger side that features a foot rest and allows you to slide the front seat forward to liberate more room. Deluxe. 

No matter if you are in one of the stretched models demarcated as such by the ‘L’ suffix or not, you will enjoy excellent seat comfort and good head- and shoulder-room. Legroom in the regular models isn’t as plentiful as you might expect: much more affordable cars like the Hyundai Sonata give the S-Class a run for its money in that regard.

There are good storage options for odds and ends, with the back seat featuring a fold-down armrest with pop-out cupholders and a storage box, as well as map pockets - and the boot space varies depending on the model, but the S 350 d has a 510-litre cargo capacity (VDA). All four doors have bottle holsters, and a bit of extra room besides. Of course there are rear-seat air-vents, and if you’re kids are lucky enough to ride around in a S-Class, the two ISOFIX/three top-tether points will be welcome.

Up front there are two cupholders between the seats, and a new wireless phone charger in the centre console (Qi compatible phones only). There are two USB ports as standard in most models, while models with the rear seat entertainment package fitted get rear USBs. 

The huge screen that runs across two-thirds of the dashboard has seen the noticeable join marker removed for this update, with the monitors being upgraded to a higher resolution and the graphics have been reworked, too. The codpiece-style controller of the Comand media interface remains, and while it still isn’t as simple as other controllers, it is reasonably easy to get used to. 

So … what about Beyonce? 

She comes in as part of the Energizing Comfort Control system, which is standard in some models and a $1400 option in those that don’t have it fitted. 

Essentially it allows you to choose between different set moods: 'Joy', 'Freshness', 'Vitality', 'Warmth', 'Comfort' and 'Training', the latter of which offers three different stretching/exercise programs that last for 10 minutes to stop fatigue. The instructions are given by voice over the sound system.

Each of the moods will adjust the temperature and ventilation (the Freshness setting offers ‘gusts’ of fresh air as if you’re at the beach!), ambient lighting, air fragrance and intensity, and the massage function for the seats. And the music bit - there are predefined songs the system can cue up to suit the mood, or it can identify songs on a hard-drive or USB that suit the programs by analysing the tempo of the tune. Amazing, right?

The new steering wheel looks a lot sportier than the one in the pre-update car, and it has finally done away with the awkward cruise control stalk in favour of steering wheel buttons for the adaptive cruise control system.

If you can call a car that starts near two-hundred grand good value, then you have much more money than I do. But there is no escaping it: the new S-Class 2018 range is better value than before.

The starting point in the range is entry-grade S 350 d, which is $195,900 plus on-road costs. 

Standard kit for that model includes 19-inch alloy wheels, leather trim, heated and cooled front seats, nappa leather-wrapped steering wheel, those great new headlights and the new ambient lighting system, a panoramic sunroof, head-up display, dark brown 'Eucalyptus' trim, auto-dimming rear-view and side mirrors, a wireless phone charging system, keyless entry and push-button start. The entire S-Class range now gets auto-closing doors and an electric boot lid, too.

The media system in the S 350 d includes sat nav with traffic monitoring, a 13-speaker Burmester sound system, digital TV, DAB+ digital radio, Apple CarPlay and Android Auto, and the 'Comand Online' system with internet capability.

Next up the model range is the S 400d L (at $222,500), and the S 450 L ($227,500) - both of which are specified identically. Over the base model car they feature the extended wheelbase, as well as electronically adjustable rear seats with memory function, side window blinds, a rear blind, rear climate control, and 20-inch wheels. 

The S 560 sees the price head north to $270,000 (for the short-wheelbase model, which loses the abovementioned stuff in the L models), or $295,000 for the S 560 L. It adds the following nice features: nappa leather, brown burr walnut trim, a wood/leather steering wheel, 'Energizing Comfort Control', different (five-spoke design) 20-inch wheels, laminated glass and an anti-theft protection package. The S 560 L has luxury rear head restraints - they’re more like pillows, honestly - an individual rear-seat entertainment system and two wireless headsets.

The top of the regular S-Class model range is the Mercedes-AMG S 63 L, which is a princely $375,000. It builds on the kit offered in the models below, and pushes the sports luxury aspect further, with a full AMG body kit, 20-inch AMG wheels, AMG specific drive programs, AMG brakes, an uprated exhaust, sports steering and retuned suspension. Inside there are model-specific elements, special wood trim, front seats with active bolstering, and heated and ventilated rear seats.  

If you’re shopping at this end of the market, then you’ll likely also be tossing up between a BMW 7 Series, or maybe a Bentley Flying Spur. An all-new Lexus LS will arrive in April 2018, and the all-new Audi A8 isn’t far away, either.

There’s the choice of two powertrains for the Dolphin. Both are single-motor front-wheel drive set-ups.

The base Dynamic can make use of 70kW/180Nm which sounds underpowered to me, but the car we tested for this launch review was the Premium which offers a much healthier 150kW/310Nm.

As well as the increase to battery capacity the Premium upgrades the suspension to a rear multi-link set-up.

While the base car seems like such a value buy, the increase in power, ride quality, and range seems to justify stretching to the Premium if your budget allows.

The big news for the majority of S-Class buyers is the new engine in the S 350d, which is a 2.9-litre in-line six-cylinder turbo-diesel with 210kW of power and 600Nm of torque. It has a nine-speed automatic and is rear-wheel drive (RWD).

That same diesel engine is wicked up in the S 400d L, with that model churning out 250kW and 700Nm, and remains rear-drive with a nine-speed auto.

The petrol model range is opened by the S 450 L with a 3.0-litre six-cylinder twin-turbo mill producing 270kW/520Nm. Again, nine-speed auto, RWD.

The S 560 and S 560L run the same 4.0-litre twin-turbo V8 petrol with 345kW of power and 700Nm of torque. Nine-speed auto, rear-drive - naturally!

The AMG-fettled S 63 has a thumping twin-turbo 4.0-litre V8 petrol engine with 450kW and 900Nm, with a nine-speed MCT multi-clutch auto and - you guessed it - RWD.

As previously mentioned, each variant also gets its own battery capacity. The entry-level Dynamic offers a 44.9kWh battery and 340km of driving range, while the top-spec car offers a 60.5kWh unit with a driving range of 427km.

Charging on a fast DC unit maxes out on 60kW for the Dynamic or 80kW for the Premium.

This sounds slow, with many rivals offering in excess of 100kW charging at a minimum, but because the Dolphin’s battery sizes are so trim, it still means an 80 per cent charge will arrive in a little over half an hour.

On the slower AC charging standard, the max speed is a disappointing 7.0kW. For a fully electric car, we prefer to see at least 11kW as it makes it worthwhile to plug-in to an AC unit at a shopping centre to add roughly 70 - 100km of range an hour.

Because the Dophin is also quite efficient, though, you can still expect about 50km an hour to be added on this charging standard.

Official energy consumption for the Premium as-tested is 14.2kWh/100km, and we saw an impressive 14.1kWh/100km on our brief test program, making it one of the more efficient EVs I’ve ever driven.

The diesel models are - unsurprisingly - the most frugal in the range, with the entry-level S 350 d using a claimed 5.4 litres per 100km across a range of disciplines.

The S 400 d L - which uses a higher-output version of the same diesel drivetrain as the model above - uses only a minuscule amount more: its claim is 5.5L/100km. 

The most frugal of the petrols is the S 450 L, with its six-pot petrol twin-turbo using a claimed 8.4L/100km.

Every model has stop-start - including the AMG - and the V8 petrols also feature cylinder deactivation when in 'Eco' mode.

That cylinder deactivation system helps the S 560 achieve an incredibly low claimed consumption of 8.5L/100km. So does the longer, slightly heavier S 560 L.

The higher-out Mercedes-AMG S 63 L uses 9.0L/100km, according to its claim. Amazing for the outputs of the engine.

The Dolphin is immediately impressive. From the get-go I was greeted with a feeling of quality from the car in ways I didn’t expect. The steering feels nicely balanced and not too artificial like it can be on some EVs, while the interior is refreshingly ergonomic.

The ride might be the Dolphin’s most impressive trait, with a feeling of balance across both axles, and a spritely feel to the whole car.

It is trim for an EV, with a kerb weight of 1658kg, which no doubt helps the steering feel, and the efficiency.

As it is, I didn’t experience the kind of crashing and wallowing many EVs suffer from on larger bumps, and smaller bumps seemed to be filtered out with ease.

It even feels nicely balanced in the corners, pairing nicely with the great steering feel which is not something we’ve come to expect from Chinese cars.

The motor is also willing, with software tuning keeping power delivery on the right side of overwhelming, although the warm-hatch equivalent's seven second 0-100km/h sprint time is a hint at what it’s capable of.

Unfortunately, it is let down by a pretty sub-standard factory tyre package. The LingLong Comfort Masters are designed for the Dolphin, complete with little Dolphin markings on them, but are hardly inspiring for traction when you plant the accelerator or tip it into a corner with enthusiasm.

They are better than the pretty much no-name Atlas Batman A51 tyres which came on the Atto 3, but even MG has wised up to putting tyres from renowned manufacturers on its Australian-delivered cars.

The Dolphin is also easy to park, thanks to its excellent surround camera suite and tight footprint, but visibility out of the tiny rear window is limited and made worse by the huge headrests for the outboard back seats.

In terms of electric driving characteristics the Dolphin offers two levels of regen braking, one which is virtually non-existent, and another mild tune.

Surprisingly, there’s no single-pedal mode, and the Dolphin leans on blended braking more than some of its rivals. It feels a lot more traditional to drive in this sense, so may be well suited to someone hopping out of a combustion car.

The drive modes are quite dramatic, with 'Eco' mode limiting motor torque and even switching off the climate control, while 'Sport' will make bouts of wheelspin a bit too easy by upping the response time from the motor. I found it best to stick to the nicely-balanced 'Normal' setting.

Tl;dr? The Dolphin is impressive. It’s responsive, relatively light, and has a sense of quality to it through its great ride and decent handling. Not bad for the cheapest EV in Australia.

Smooth. It wasn’t even because I’d chosen the Energizing Comfort Control mood to elicit that vibe. It’s smooth - and so it should be.

Whether it’s the near-silent new six-cylinder diesel, which hauls the near two-tonne sedan along with less fuss than a medical centre receptionist dealing with a room full of coughing patients. There is no fuss. You just hand over control to the engine, and trust it will get you where you need to be.

The V8 petrol in the S 560 also has a bit of a silent killer vibe to it. There’s perhaps not as much noise as a V8 fan might want, but the mumbo is there, and in both cars the gearshifts are sublimely timed and super smooth.

Admittedly, the stiff-sided run-flat tyres on both the 19- and 20-inch wheels can exhibit a slight terseness over sharp edges, but when it comes to rolling over pockmarked surfaces or rougher country backroads, the ride offered up by the air suspension with variable dampers is superb. Put it in Sport mode and it stiffens up to the degree you’d expect, but Comfort is no doubt the best place to be.

The steering is super light but accurate, meaning it’s easier than you’d think to pilot this behemoth of a sedan through corners. The grip on offer is excellent, too, even if traction can be an issue - I had a full couple of seconds of strobe light action from the traction control light when I buried the throttle in the S 560. 

I didn’t get a chance to drive the six-cylinder petrol S 450 L, or the S 400 d L. And, I’m really sad to report, there was no opportunity to drive the AMG S 63 L, either. 

But the overall feeling of the updated range is that it remains a deluxe and delightful limousine - whether you have the good fortune of being in the driver’s seat or not.

Easily one of the safest cars, if not the safest car, on the road today if technology is anything to go by. Well, we can’t go by a crash test score, because the S-Class hasn’t been crashed by EuroNCAP or ANCAP. So I can’t really give it a 10/10 for safety…

But when the standard safety kit list is as lengthy as the S-Class’s, it seems a safe bet. Items fitted include a 360-degree camera system, parking sensors front and rear, auto emergency braking, active blind-spot monitoring, active lane-keeping assist, adaptive cruise control with active steering assist, drowsiness detection, crosswind assist, and pedestrian detection with evasive steering assist (which allows you to turn the wheel harder to avoid impact with a pedestrian).

Plus there are other items like the company’s Pre-Safe crash detection system which can flash the car’s hazard lights at other road users, and tighten the occupant’s seatbelt in anticipation of being hit. And if that happens, there are eight airbags (dual front, front side, rear side, curtain).

The Dolphin is covered by a six-year or 150,000km warranty, which beats a lot of mainstream rivals for its duration, but not its distance.

In the EV segment it plays in, though, things are a bit tougher, as its primary Chinese rivals, GWM and MG, are offering seven year and unlimited kilometre warranty promises.

Service pricing is available all the way out to 96 months or 160,000km, averaging $299 per year for the duration, which is pretty good.

Many rivals are offering free servicing for several years, and there are also many electric cars which only need to see a shop once every 24 months or 20,000km, compared to the Dolphin’s more traditional 12 month intervals.

Mercedes-Benz offers a standard three-year/unlimited kilometre warranty.

Servicing is due every 12 months or 25,000km on all engines except AMG drivetrains, which require servicing every year or 20,000km. 

Mercedes-Benz has a (pricey!) capped-price servicing plan. The standard diesel and petrol models in the S-Class range cost $596 for the first service, and $1192 for the second and third visits. The costs for the sole AMG model is $736 for the first service, then the second and third visits are $1472 per.