Mazda 6 vs Mercedes-Benz E300

What's the difference?

So, what did my family think about the Mazda6 20th Anniversary wagon? Firstly, I like that it drives well and how many luxe features are up front. The trims and body paint look divine but there's a disconnect with family practicality in the back seat. Besides the multimedia system, which 100 per cent needs to be improved, I don't mind the retro-feeling elements in the cockpit but my husband's first comment was that it looked old.

It may be better suited to a smaller and older family that isn't carting around a stack of gear but you get a lot of features for your cash in this model. So, this gets a 7.0/10 from me.

My son didn't spend heaps of time in this one but he liked the colour of it and the seats. He gives it a 7.0/10.

The E-Class is stacked with kit, looks great, and is an effective and comfortable way to get around in built-up areas or across the countryside.

While it’s not the most dynamically engaging - it’s pipped by its Bavarian rival there - it offers more comfort-oriented features than most, and the cabin is a pleasant place to spend a day driving.

If you're disposed towards stumping up the asking price, the extra outlay for the 'Plus Package' will probably be most relevant to you if you’re covering long distances due to the Airmatic suspension.

Otherwise, even a simple-spec E300 provides a step up from what you might expect from an executive sedan.

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

At first glance there's not a lot that separates this from its siblings, it's not until you get up close that you notice more shiny chrome accents on the grille, those special anniversary badges on the side and its limited colour options – I hope you like red or white, as those are your only choices!

The wagon manages to look sporty with its 19-inch alloy wheels, full LED exterior lights and the classic protruding nose that Mazda seems known for now.

It's far more obvious in the interior though with the beautiful tan Nappa leather seats, synthetic suede trims and special embossing on the front headrests.

Surprisingly, the dashboard is still headlined by the older 8.0-inch touchscreen multimedia system. There's also the traditional gear-shifter and buttons/dials to deal with. All of which manage to nod to its long history while starting to feel like relics for such a special edition.

Overall, its pleasant and handsome but don't expect to be wowed, Mazda hasn't broken new ground with this one.

Evolution rather than revolution is obvious when it comes to the E-Class’ styling, but that’s in Mercedes’ best interests, because it’s still a good-looking thing, and being a bit subtle is warranted in the executive sedan game.

The biggest changes come in the headlights and tail-lights. Up-front there are now more than one million pixels in the LED headlights, which have adaptive high beam as standard and are more connected to the grille via black trim, as has been seen in EQ electric models.

Underneath, the bumper now features an AMG-style 'A-wing' apron as part of the 'AMG Line' exterior package as standard. A set of 20-inch AMG alloys are also included.

To the rear, and the digital tail-lights feature a Mercedes-Benz star motif, making its lighting signature now more recognisable from behind.

The German Rainbow is well-represented with mostly shades of grey, black, or white available, though 'Verde Silver Metallic' is a slightly retro green, and 'Nautic Blue Metallic' is a subtle and classy tone.

The daring ‘Manufaktur’ shade of 'Patagonia Red Metallic' is a $2500 option, as is 'Opalite White Bright' while 'Alpine Grey Solid' is $2900.

The interior is comfortable and well-proportioned but front passengers will enjoy the most room. You'll still feel like you'll be jostling for premium armrest position, though!

Up front, the individual storage is adequate and the open utility tray is large but my phone slid around in it, making it hard to use the wireless charging pad.

There are enough charging options throughout the car to satisfy four people, with two USB-A ports in each row. Curiously, you can only utilise the backseat USBs when the armrest is down, which makes this feel more suited to a smaller family.

The 8.0-inch touchscreen is small and the graphics aren't super clear. You can use it as a touchscreen or opt for the rotary dial but I found switching between the two awkward. Especially, since the touchscreen is disabled while using the (wireless) Apple CarPlay or (wired) Android Auto.

The back seat is quite lean when it comes to amenities and storage. Although, the heated outboard seats are a nice touch, but again, you can only access the controls when the armrest is down.

You can fit up to three (skinny) child seats but with the low roofline, you might not want to be bending over to buckle them in.  The door apertures are not too wide either but my six-year-old had no trouble climbing in and out.

For this class, the boot is an okay size at 506L. There is a temporary spare wheel under the level loading space and it's great how the cargo-blind lifts up and away from the space because it's attached to the boot lid.

Unfortunately, this doesn't come with a powered tailgate and I did miss having that feature this week.

Inside, the E-Class should feel familiar to anyone who’s spent time in a recent Benz, though the Superscreen might be the main point of difference. It’s an immediately comfortable place, though, with a relatively visually busy cabin.

The seats and their adjustability mean most drivers and passengers, regardless of height and size, should feel supported (and ideally relaxed), while touch-points are mostly either leather upholstery or digital screens.

The steering wheel, also seen in plenty of other Mercedes models, is a bit of a let-down, however, with its haptic touch pads on a slightly busy two-tier layout. This millennial found it irritating, surely too will the usually older E-Class buyer.

There are a few other small annoyances, one being that the MBUX Assistant sometimes won’t hear a command, or that not everything seems to be able to be controlled by it. The climate control vent positions are electrically adjustable to certain pre-sets through the menu, but the MBUX Assistant isn’t able to do this for you.

And while the driver display and central multimedia screen are fairly user-friendly, it’s not always immediately apparent what the quickest way to find some information or a setting is.

Our test car was fitted with the 'Plus Package', which means four-zone climate control available to the rear seats, which my 180cm-tall self found spacious with plenty of headroom, kneeroom, and even a fair bit of room under the driver’s seat.

Behind the rear seats, there’s a generous 540 litres of boot space, exactly the same capacity as the previous generation E-Class.

While cross-shopping the E-Class and a BMW 5 Series would normally be relatively easy, the Merc’s $131,500 starting price, before on-road costs, puts it plenty north of the base 520i, the only petrol one available, at $114,900. The electric i5 eDrive40 starts from $155,900, more than $20K over the Mercedes.

But the E-Class is stacked with features as standard, and while there are a couple of option packs, Mercedes Australia has tried to streamline the most popular features and specifications into the E300.

Its $131,500 price gets you a tech-heavy sedan with Merc’s latest 'MBUX' system housed in a visually impressive, if perhaps unnecessary, 'Superscreen' dash.

The dual-screen set-up incorporates a main 14.4-inch central multimedia touchscreen and a 12.3-inch display for the passenger, allowing the driver to keep, for example, a map visible while a passenger sorts out media or comfort settings.

The system is also designed to avoid taking users through sub-menus, though can be bypassed by wireless Android Auto or Apple CarPlay.

It also features a selfie camera mounted to the dash, which is disabled for the Australian market at present. Mercedes-Benz Australia hopes to change this soon.

Mercedes also plans to allow the MBUX system to learn what settings and functions will be most useful to the driver under certain conditions, but currently users are able to manually create so-called ‘Routines’ such as setting the climate control and seats to warm up if it’s below a certain temperature, and can even adjust the ambient lighting to a warmer colour.

More automation comes in the brand’s MBUX ‘Hey Mercedes’ system, which can now respond to commands without the driver needing to say “Hey Mercedes”. 

Heated and vented front seats, leather upholstery, wireless phone charging, and a 17-speaker Burmester sound system with Dolby Atmos 4D sound are also standard - the latter being a clever feature that positions different elements of the audio, usually music, to give a 360-degree feeling, as well as turning bassier tones into a physical vibration via “tactile transducers” in each front seat’s backrest. Good for bassline junkies, then (apologies to Mr. Rascal).

With the $9400 'Plus Package', the E-Class also comes with 'Airmatic' suspension and rear-axle steering (which I’ll touch more on later), power-closing doors, 'Urban Guard' to monitor your vehicle while it’s parked, an illuminated grille up front, a more capable version of the MBUX 'Interior Assistant', four-zone climate control and Mercedes’ 'Digital Light' function, which uses the more-than one-million pixels in the headlights to project onto the road or surface in front of you when turning the car off or in driving situations to alert road users of potential danger.

A $6200 'Energising Package' adds multicontour front seats with comfort headrests, upgraded climate controls with 'Air-Balance' and fragrances, upgraded seat heating with armrest heating for the front occupants and heated seats for the rear.

This shares the same engine with the Atenza and that's a 2.5-litre, four-cylinder turbo-petrol one. It has a max power output of 173kW and 420Nm of torque. Plenty of oomph to get you (and your gear) to where you need to go.

The 20th Anniversary edition is a front-wheel-drive and has a six-speed auto transmission. It's not the smoothest combination at lower speeds but let it stretch its legs and you'll be happy with the results.

This lone E-Class variant is powered by a turbocharged 2.0-litre engine pumping out 190kW and 400Nm, assisted by a 48-volt battery system. Under EQ boost, an extra 17kW and 205Nm is available for a short time.

It’s hooked up to a nine-speed auto that drives the rear wheels, and it’s all pretty traditional… for 2024, that is.

Mercedes says the E300 is able to hit 100km/h in a respectable 6.3 seconds.

Let's talk about efficiency. It has a combined cycle fuel figure of 7.6L/100km but I only managed to achieve 10.9L. I reckon that's pretty thirsty considering how much open-road driving I did this week but it's not outrageous for a turbo. Expect a higher figure in an urban setting.

Based on the combined figure, you should be able to get a driving range of around 816km, which is perfectly respectable for those wanting to do a road trip.

Mercedes claims the E-Class drinks 7.2L/100km on the combined cycle, and though we weren’t able to test that properly at the pump on the launch program, the trip computer showed up to 9.4L/100km after some quite spirited driving, which gradually averaged out to about 8.6L/100km in the afternoon once some more calm, E-Class-appropriate distance had been covered.

With its 50L fuel tank, the E-Class should theoretically be able to cover 694km on a single tank if the 7.2L/100km is achieved, though realistically it would be much less, 550-600km depending on driving style.

This is a car that knows what it is and stays in its lane. It's not trying to be the best but it certainly comes close with how it handles itself.

The lower centre of gravity and responsive steering make it hug corners and the car feels firmly situated on the road.

There's enough power that this is a comfy open-roader and you're confident overtaking or getting up to speed but you do feel like you're starting to dig when you hit steeper slopes.

The suspension is a little firm but your backseat passengers will feel that more than you will. Still, it absorbs enough of the bumps that you feel cushioned, even on rough country roads!

The cabin space is fairly quiet but you will get wind noise at higher speeds. Otherwise, all passengers should be able to chat without raising their voices.

I didn't find this to be a bother to park but the 360-degree view camera is terrible. It's very blurry and on the 8.0-inch screen, the image looks small, too.

That said, I love the 11m turning circle and the front and rear parking sensors. Overall, you won't have much trouble parking this one.

While the E-Class has taken fairly sizeable steps in terms of its tech, it remains a fairly traditional car from behind the wheel, save for a few small changes like its mild-hybrid system and rear-wheel steering.

It’s still a petrol-powered rear-drive sedan, and it feels built more for eating up highway kilometres than it does tackling twisty turns. But that’s okay, because it will still do the latter.

Comfort is the main focus, clearly, for the E300, and the big Merc does it well. We weren’t offered a car without Airmatic air suspension on the launch, but the E-Class doesn’t seem like it would be particularly rough without it.

With it, however, large bumps and minor road annoyances only make their way into the cabin in the sense that you’re aware of them, but not bothered by them.

That slight dulling of feedback does extend to the steering wheel however, where, despite the rear-wheel steering making the car more nimble, the feedback to the driver is less encouraging of eager driving. 

While 190kW on paper doesn’t seem like enough, the E-Class makes do with its meagre engine quite well - and even though it can seem like it’s working a bit too hard at times, the E-Class’ natural state isn’t responding to a planted foot, so it’s unlikely to be a daily bother.

Engine noise, as well as wind and road noise are suitably dulled by the E300’s NVH fitout, too.

The tuning of its drive modes, in particular Comfort and Sport, seemed well-judged on our drive loop, with the option to set the 'Individual' mode to a custom configuration, most elements in Comfort while the drivetrain is set to Sport is particularly helpful when on gentle, high-speed country roads.

If you do start to approach the limits of the big sedan’s capability, it’ll let you know fairly early on. The heavy E-Class isn’t prone to sudden lurching or poor handling, and isn’t much phased by mid-corner bumps.

It’s not as dynamically engaging as some rivals, particularly the 5 Series, but it does appear to be a better provider of cross-country comfort.

ANCAP hasn’t had a go at crash-testing the E-Class yet, and it might not given the relatively small number that will be sold here compared to volume models, but Mercedes’ track record with safety is pretty stellar, and it’s extremely rare for a Mercedes to not cop the maximum five stars.

In the new E300 there are 11 airbags - plenty for a sedan. Mercedes lists front airbags, knee bags and pelvic/thorax airbags for the driver and front passenger, side bags for the rear and a front centre airbag.

It also comes with a fairly extensive suite of safety tech, including the usual ABS, lane-keep assist, blind spot monitoring and surround-view parking cameras.

But on top of that, there’s also ‘Evasive Steering Assist’, semi-automated cruise control with sign recognition, distance assist for following leading vehicles and can even project light arrows onto the road if leaving your lane, when 'Digital Lights' are optioned.

The E-Class also has a function if an imminent collision is detected in which it can, depending on the type of collision, take occupant protection measures. In the case of a side-on collision, the E-Class can “move an affected front occupant towards the centre of the car” before impact.

The ongoing costs match the purchase price for their affordability. This has a five-year/unlimited km warranty, which is pretty normal for this class.

However, on the five-year servicing plan, services average $501 per service - which is very competitive for this class! Servicing intervals are also reasonable at every 12 months or 15,000km, whichever occurs first.

You're not even getting hit with the fuel pricing you can see on other mid-range models because this accepts a minimum of 91 RON petrol and is even E10 suitable.

The E-Class comes with Mercedes’ fairly industry standard five-year, unlimited kilometre warranty, though Mercedes-Benz Australia was unable to confirm exact servicing pricing on the launch. 

It does however list pricing for the E-Class on its website for a three-service pack at $3325, four at $4535, and five at $6800, the latter averaging out to $1360 each.

This could increase with the new generation car, and Mercedes doesn’t list estimated serving pricing for new E-Classes yet in its booking system (I checked with one of the test cars).

Servicing intervals are every 12 months or 25,000km, whichever comes first.