Zeekr X vs Mercedes-Benz E400

What's the difference?

It's a good thing in a small package, this Zeekr X, and there are a lot of things I like about it. In fact, the only sticking point for me is the price. But that's all about perspective. If you see this as a newcomer Chinese brand, then yes, there are a lot of more affordable options out there. But if you see it as a premium player, it's really a more affordable version of a Volvo.

Note: The author, Andrew Chesterton, is a co-owner of Smart As Media, a content agency and media distribution service with a number of automotive brands among its clients. When producing content for CarsGuide, he does so in accordance with the CarsGuide Editorial Guidelines and Code of Ethics, and the views and opinions expressed in this article are solely those of the author.

A convertible that doesn't feel like one when the roof is in place is no easy task to build, but it's one Merc's engineers have pulled off with the E400 4Matic Cabriolet. Effortless power, a tonne of technology and a comfy, leather-wrapped cabin all make Merc's drop-top E-Class a strong proposition.

The visual changes aren’t massive. This AWD version welcomes a couple of new exterior colours, including the 'Matt Khaki Green' of our test car. It also gets the two-tone black roof and there are new 20-inch alloy designs.

Elsewhere, it's the futuristic-style of design we’re used to which differentiates the X from its Volvo EX30 twin under the skin.

Inside, this is a seriously well-equipped and polished-feeling small SUV, and — unlike some of the newcomer brands to Australia — it all feels very high quality and well put together. And that includes the material choices.

I don’t even hate the fact that most of the functions are controlled via this screen, thanks to the little shortcuts glued to the home screen. I do, however, hate the fact that there’s no easy way to change the wing mirrors or shortcuts for toning down some of the safety stuff.

That aside, though, it’s a nice and high-quality feeling space.

Elegance. That's the word that springs to mind when you first clamp eyes on the E400 Cabriolet. While the Coupe version has a crouched-over sportiness about its exterior design, the convertible is all about big and boat-like proportions, especially with the fabric roof opened.

Like nearly all drop-tops, the E400 looks best with the cabin open to the elements, and the side profile especially paints a picture of well-heeled wafting, with only the AMG alloys and body styling hinting at the performance on offer under the bonnet.

Inside, expect perfectly executed modern luxury, with soft leather seats, touchpoints that melt under the fingers and a sprinkling of woodgrain trim. All of which feel like old-world luxury, nicely juxtaposed by the huge twin-screen display that dominates the dash.

You know you're in a small vehicle when you can't fit two large (not those crazy American-style jumbo cups, just normal coffee-shop takeaway) coffees in the cupholders, but so it is with the Zeekr X.

The small SUV's 4432mm length, 1836mm in width and 1566mm height doesn't leave much room to spread out up front. There's ample room for driver and passenger, of course, but we are talking about a small vehicle here.

Clever storage helps to mitigate that, though, especially the super-deep storage space in the centre console and the very clever fridge that separates the driver and passenger seats.

Weirdly, though, the space doesn’t feel overly tight in the back seat. We had a massive baby seat in there, and that fit without issue. And full size humans can genuinely get pretty comfortable. I'm 175cm, and I had enough knee and headroom.

In the boot, there’s 404 litres of volume with the rear seats upright and 1247 litres with them folded flat. And it’s worth pointing out this isn’t intended to be a family car, but there’s certainly enough space for the shopping... and a pram.

It's a two-door, four-seat convertible, so practicality isn't at the very top of its list of strengths.

That said, life is peachy for upfront riders, both of whom will travel in spacious luxury. There are two cupholders hidden beneath a woodgrain cover underneath the climate controls - also home to a power outlet - as well as a clever double-hinged central storage bin that can be opened by either the passenger or driver, and which opens to reveal two USB points.

There's room in the doors for bottles, too, and the entertainment system can be controlled via a touchpad controller mounted above the traditional click wheel - although, to be honest, using it is harder and more time consuming than simply pretending it doesn't exist.

Climbing into the back (and we mean climb - there are no rear doors) is made easier by the fact you can fold and slide the front seats automatically by pulling a lever mounted near the headrest. Once there, though, you'll find space is a little tighter, and you feel weirdly cocooned, owing to the huge raised tunnel that runs through the middle of the cabin, and the low roof line.

There are two cupholders that live in the space where the middle seat would normally go, and there's a little bottle-holder cubby to the left of both backseat riders. There are air vents back there, too, but no temperature controls.

The front doors are huge and really very heavy, requiring considerable heft to open them.

The boot space is predictably a little limited, with 385 litres on offer. There's also a little flip-down separator, which shows you how much room the roof will need to come down, reducing boot space to 310 litres. Speaking of which, the soft-top can be lowered in just 20 seconds, and at speeds up to 50km/h.

One practicality quirk, though. The front (and only) doors are huge and really very heavy, requiring considerable heft to open them, especially if you're parked on a slight angle. Honestly, I was reduced to kind of pushing them open with my foot at times.

At $157,400, the Cabriolet is the most expensive model in the E400 family, and is roughly $20k more than the sedan and $10k more than the coupe variants.

That money buys you a comprehensively kitted-out ride - as it really should - with the E400 Cabriolet arriving with 20-inch AMG alloys, LED headlights (made up of 84 LEDs) with high-beam assist, proximity unlocking with push-button start, air suspension and Merc's AIRCAP - a lip above the windscreen that's designed to push air up and over the cabin when the roof is down.

Inside, you'll find leather seats, dual-zone climate control and the clever 'AirScarf' system, which pumps hot air onto your neck when the roof is down (and it's cold out). You'll also nab heated front seats, power windows front and back and an automatic belt feeder, which saves you reaching over your shoulder to get to your seatbelt. So exhausting.

On the tech front, expect a killer 590W, 13-speaker Burmester stereo, controlled by the seriously impressive widescreen cockpit; two 12.3-inch screens that spill from about the centre of the dash all the way to the driver's binnacle, and control everything from navigation to Apple CarPlay and Android Auto.

There's a whole bunch of safety stuff, including semi-autonomous technology, but we'll drill down on that under the Safety sub-heading.

The big news here is a more powerful rear motor – meaning you get more grunt whether you opt for the rear-wheel drive or this all-wheel drive.

In rear-drive form, that boosts your outputs from 200kW to 250kW, dropping the sprint to 100km/h to 5.6 seconds. In AWD guise, your new outputs are 365kW (up from 315kW) and 573Nm, and your sprint to 100km/h falls to 3.7 seconds.

It's a fabulous engine, this twin-turbocharged V6 - even if it doesn't feel quite so lively in Cabriolet form as it does in the hardtop equivalents.

The 3.0-litre unit produces 245kW/480Nm, sending it to all four wheels via a nine-speed automatic transmission, linked to the standard 4Matic all-wheel drive system.

This is where it starts to get weird. The rear-drive Zeekr X is fitted with a 61kWh LFP battery, which can accept up to 230kW DC fast charging, taking you from 10 to 80 per cent charged in just 18 minutes. Total claimed range is 405km.

The flagship AWD, though, charges at a slower rate. It gets a 66kWh NMN battery and can only be charged at 150kW, meaning the same charge takes 30 minutes. Zeekr is promising a 415km driving range between charges.

Mercedes claims 7.4L/100km on the combined cycle (but you can expect to be pushing nine litres in real-world conditions), with emissions pegged at 170g per kilometre of CO2.

The 66-litre tank will only accepts 95RON fuel.

Short answer? Pretty good, with some caveats.

I'm partial to a firmer ride. I find some Chinese car companies can feel like they get their suspension bits from Captain Snooze, such is the soft, pillowy ride served up. And to be honest, it makes me a little seasick at times.

The Zeekr is not like that. It has firmness dialled into the ride equation and can feel harsh at times, but also improves the drive experience, delivering connection and engagement at the cost of some sharpness on the wrong road. 

It's also faster than the model it replaces, but it's also one of those cars in which the real-life feeling doesn't quite match the on-paper promise.

This thing serves up supercar speed, but it doesn't feel like it from behind the wheel. Instead, the acceleration - especially from a rolling start - feels potent, but not biblical.

From a standing start it pauses for a moment, almost like an internal-combustion vehicle might, before delivering a quick (but not stratospheric) flow of power. None of that is a bad thing, by the way. Who wants their small SUV to accelerate like a supercar?

It's otherwise an entirely pleasant drive. The cabin is serene and quiet and it's a small car that doesn't feel like one. There's nothing light or tinny about the drive experience, instead there's a heft and quality.

Sure, the E400 Cabriolet can drive itself, but we’re equally pleased to note that it’s still a lot more fun handling the steering duties yourself.

And that is mostly due to that fabulous engine; quiet and effortless at city speeds, rorty and enthusiastic at pace, and genuinely angry with the drive setting switched to their most hardcore Sport+ mode.

We’ve already spent time in the sedan version, and while this Cabriolet is heavier (1935kg vs 1820kg) and slightly slower to 100km/h (5.5sec vs 5.2sec) it doesn’t immediately feel it behind the wheel, with a similar and satisfying lurch into the future when you plant your foot.

But hard charging is not what this car is about, and the E 400 is at its peachy best when rolling about the city or the ‘burbs with the top down, and the warm summer air washing through the cabin.

In its normal drive settings, the steering is light but engaged, and the ride on offer from the standard air suspension is outstanding, cosseting the cabin from all but the very worst road imperfections, while the torque from the V6 serves up effortless, unobtrusive acceleration.

With the roof up, Merc’s designers have done a stellar job of hiding the fact this thing is a convertible at all. It’s a solid-feeling cabin with the fabric roof fastened, and the cabin is quiet and free from wind noise.

There are few cars on the road as overloaded with safety technology as the E400 Cabriolet.

The standard stuff is all there, of course. There's a 360-degree parking camera, as well as nine airbags (dual front, dual pelvic/thorax for front-seat passengers, dual sidebags for rear passengers, dual head bags in the doors and a knee airbag for the driver), rollover protection and tyre-pressure monitoring, as well as braking and traction aids.

But the E400 adds some really clever technology, including Merc's Driving Assistance Package Plus, which adds active lane keeping, blind-spot assist, cross-traffic alert and evasive steering assist.

It's this suite of systems that allows the E400 to navigate freeways autonomously, including changing lanes on demand. At the moment, the system will warn you to keep your hands on the wheel every so often, but you can sense a time when that will no longer be required. And that time is soon.

The E-Class range scored the maximum five-star ANCAP safety rating when crash tested in 2016.

Zeekr's coverage is an underwhelming five-year, unlimited-kilometres, while the drive battery is covered for eight-years or 160,000km. There’s five years' of roadside assistance thrown in, too.

Service intervals are 20,000km or 12 months, with five years' of ownership setting you back a hefty $3072; an average of $614 per workshop visit.

There are currently 16 Zeekr dealers in Australia - two of which are 'pop-up' sites rather than full retail centres.

Multiple locations in Melbourne, Sydney and Brisbane with the ACT, Adelaide and Perth also covered. Others include Geelong and the Sunshine Coast but so far you're out of luck in Tassie or the NT.

Expect the usual three-year, unlimited-kilometre warranty, with service intervals pegged at 12 months or 25,000km. Mercedes' capped-price servicing scheme limits maintenance costs to $2280 for the first three years of ownership.