Kia EV9 vs Mercedes-Benz GLC300

What's the difference?

Whether you think the EV9 GT is an over-priced mistake or the logical next step for a brand looking to move up in the world will depend on your point-of-view.

Kia has certainly extended the appeal of the EV9 range, but possibly in the wrong direction. Certainly the wrong direction if the goal is to add significantly more sales.

A cheaper alternative to the $97,000 EV9 Air would likely be a more popular choice from the point-of-view of Australian families considering replacing their diesel-powered SUVs with something that doesn’t rely on the chaotic fuel market. 

But that’s not really who the EV9 GT will appeal to. Instead, from the point-of-view of someone looking at a more expensive European option, whether it be an Audi Q8 e-tron, BMW iX or something else, the EV9 GT may be appealing in a very different way - assuming that they aren't driven by what badge is on the front.

Kia has certainly evolved beyond its ‘cheap and cheerful’ image or buying primarily for its long warranty. These days Kia is a mainstream brand, but whether it has enhanced its reputation enough to attract buyers willing to spend more than $130,000 will be decided in the showroom.

The GLC300 Coupe isn't quite as great when it comes to being a family car as the regular SUV version of the GLC, and that's purely down to the sloping roofline which not only makes access more difficult to the second row but reduces boot capacity.

That said, the GLC300 Coupe makes a much better family car than a Mercedes-Benz C-Class sedan, or any sedan.

Easy and enjoyable to drive, packed with great features and still practical, the GLC300 Coupe would still cut it as a good family car.

Surprisingly, given the price premium and flagship nature of the GT, there isn’t a lot to separate it from the slightly less expensive GT-Line.

It’s only when you look closer you notice subtle touches, like the ‘digital grille’, an illuminated section of the front of the car that extends the lighting signature when you start the car. The other obvious difference is the unique and huge set of 21-inch alloy wheels at each corner. The black design is offset by bright green brake calipers, which is a unique colour for the GT.

This signature fluro green colour is also on the seat trim, including contrasting stitching, as well as the GT badge on the (three-spoke) steering wheel that engages the most potent version of the electric motors.

Coupe SUVs aren’t for everybody… they’re not even for lots of people. But the design of an SUV with its roof cut down so that it meets the tailgate at an almost sportscar-like angle appeals to more than a few fans. The thing is they don’t just like the look, they love it, and they also probably enjoy how much the styling makes other people cranky.

To my eyes the GLC300 Coupe is the best execution of the bodystyle compared to those of BMW and Audi. There’s an elegance to the GLC300 Coupe and the AMG-line adds a tough look that only enhances the solid, powerful but pretty look.

The GLC Coupe is a mid-sized SUV and this new generation model is a bit bigger the previous one and now measures 31mm longer at 4763mm end to end, it’s 1890mm wide, 1605mm tall and has a wheelbase of 2888mm.

It’s also more aerodynamic than ever. No seriously, it’s drag coefficient is now 0.27 and it looks like a bar of soap - and it's about as slippery as one, too.

More curved surfaces await inside with a dashboard that pours down into the large centre console and it's adorned with a sloping and large portrait-style media screen. 

At night or in tunnels the ambient lighting glows through the air vents and skirts the edges of the door trims, console and dashboard.

It’s a minimalist and high-tech cockpit with modern sports seats up front and a Nappa leather wrapped steering wheel with its twin blade design.  

So, how does the coupe design work for family practicality? Let’s take a look.

In terms of practicality, space and usability, the EV9 GT does a lot to justify its price tag, with a cabin the equal of anything the luxury brands offer, at least in terms of the level of equipment available.

The sporty seats have adjustable side bolsters to either hug you tight for dynamic driving or open up and let you get comfortable for relaxed commutes. The front seats are heated and ventilated and also include a two-way power adjustable leg rest, for even greater support.

Those in the second row are treated to two 'captains' chairs with heating and ventilation as well, plus a massage function and the leg rest, which creates a ‘business class’ vibe for the lucky passengers.

The second-row occupants also get sun blinds (albeit manual), separate air-conditioning controls and access to USB-C charging ports in the backs of the front seats.

Accommodation in the third row is a little tight, but if the second row compromises legroom slightly you’re able to fit six occupants in relative comfort.

Those in the front get their own sunroof but there’s a second, larger sunroof to bring light into the passenger section.

In terms of the multimedia system, it’s run through the twin 12.3-inch digital screens, which are housed in a single panel to create the impression it is one large display. This is the usual Kia system, which is very easy to navigate and has both Apple CarPlay and Android Auto integration, if you prefer. 

As a major plus, there are physical buttons for the climate control and a power/volume scroll wheel for the sound system. There’s also an on/off button for the car, which is a small feature but another welcome, user-friendly touch.

As for the boot, well, with all six seats in use there’s only 333 litres of space, which isn’t massive, but that’s why Kia sells the Carnival. For an SUV with seven occupants, 333L is alright.

If you only need five seats you can liberate a more generous 828L, which is really good. It’s a nice, roomy and open cargo space.

If you really need to carry a lot of stuff and not many people, you have 2393L with the second and third row seats stowed.

On top of this, there’s a small 52L frunk, which isn’t very big but it’s a good spot to stash the charging cable. Which oddly is not where Kia actually stores it, instead there is a small bag/box which is just velcroed to the boot floor.

Given the EV9 is a purpose-built electric vehicle, why is the charging cable not stored in a more integrated manner? It’s only a small detail, and Kia isn’t alone in doing this, but I still find it odd that carmakers haven’t found a better way to deal with the EV cable yet, especially when the frunk makes so much sense as a permanent storage spot.

SUVs are the most practical cars for families because of the better access to the cabin thanks to their large doors and slightly elevated ride height, their big boots with wide and tall hatch openings and their high flat rooflines. They’re essentially raised station wagons.

A coupe-style SUV still has four doors but they are less boxy due to the sloping roofline which falls away quickly to meet the tailgate at a lower point. The effect is a sporty-looking shape but practicality is lost in this exercise of form over function.

The second row doorways aren’t as large as those on the regular SUV. I did a side-by-side test and felt like I had to duck under the sloping roof when getting out of the back seat.

The smaller opening also made it trickier to lift my toddler daughter into her baby seat.

The sidesteps are also surprisingly handy for bigger kids and my eight-year-old used them every time when climbing into the car.

Cabin storage is outstanding with huge door pockets and cupholders in both rows, and while the 545-litre boot in the GLC300 Coupe is 80 litres smaller than the cargo capacity of the regular GLC SUV, it's bigger than the previous version of the Coupe.

As for people space, there’s enough headroom for me at 189cm tall in the back seat and heaps of legroom, even behind my driving position.

I’ve mentioned the lack of climate control in the second row, but also should point out that there are no USB ports back there either.

There are USB ports in the big centre console box upfront and a long cord should be able to make it to the second row. 

There’s a wireless phone charger but it's housed in the bowels of the centre console too, and you’ll need to weave your hand while clasping the phone under the shiny black trapdoor, past the cupholders possibly with drinks in them and almost under the dashboard.

Mercedes-Benz is offering Australia just the GLC300 grade in both the SUV and Coupe body styles.

High-performance AMG variants are out overseas now and will arrive in Australia soon, too.

You can expect to pay more for these AMG beasts - a lot more than the $113,900 list price of the GLC300 Coupe.

Still the GLC300 Coupe does come standard with an AMG Line body kit and 20-inch AMG alloy wheels. LED headlights are also standard, so is the panoramic glass roof, tinted rear glass, proximity unlocking and a power tailgate.

Inside there’s synthetic leather Artico upholstery, sports heated front seats, Nappa leather steering wheel, an 11.9-inch media display with Apple CarPlay and Android Auto, a 12.3-inch digital instrument cluster and a head-up display. There’s also dual-zone climate control and wireless phone charging.

The value is good in terms of features, although the price is slightly higher compared to the rivals such as the BMW X4 xDrive30i ($106,400) and Audi Q5 Sportback 55TFSI ($110,200).

It’s worth pointing out, too, that the GLC300 Coupe is about $10K more than the GLC300 SUV version. Why? The coupe versions of prestige SUVs always tend to be pricier than their regular more boxy SUV siblings. Somebody in marketing will be able to explain why.

Having lived with the GLC300 Coupe with my family over the past few days I can say the proximity unlocking which works by touching even the back door handles is excellent, the tinted windows are dark and cut out much of the sun's glare, but there’s no climate control in the second row. There are air vents back there, which is good.

I found that on hot days the semi-transparent shade on the glass roof couldn’t stop the cabin from heating up quickly.

What’s under the bonnet, well technically underneath the front and back of the SUV, is what really separates the GT from the rest of the EV9 range.

The GT gets more powerful motors, boosting performance to 374kW of power and 740Nm of torque, which is a 92kW and 40Nm upgrade over the EV9 GT-Line.

Kia claims the GT can sprint 0-100km/h in just 4.5 seconds, nearly a full second faster than the GT-Line, and will keep going all the way to 220km/h. That’s really fast for such a big SUV, some might even say unnecessarily fast for a family-focused SUV, but given the asking price, adding extra performance is a logical move.

The GLC300 Coupe has a 2.0-litre four-cylinder turbo-petrol engine making 190kW of power and 400Nm of torque.

There’s also an overboost function which allows the engine to make an extra 17kW and 200Nm just for a brief moment, but that extra dollop of grunt combined with the regular output provides impressive acceleration (0-100km/h in about 6.3 seconds) for overtaking or moving quickly when you need to.

A smooth nine-speed automatic transmission sends the drive to all-four wheels.

The GLC300 Coupe is all-wheel drive and while there’s a setting for rougher terrain, along with one for comfort, eco and sport, but I’d make sure that it doesn’t get any more adventurous than tame gravel and dirt roads.

Mercedes-Benz refers to the GLC300 Coupe as a mild hybrid and this is because it has a 48-volt system and an integrated starter-generator.

This type of hybrid doesn’t use electric motors, doesn’t drive the wheels and won’t save much fuel, but it will provide efficiencies by supporting the engine and when coasting, plus will reduce petrol consumption to a small degree.

The GT gets the same 99.8kWh battery as the GT-Line, but Kia claims the new flagship has a slightly longer driving range, but only 510km compared to 505km.

In the real world, the car’s own trip computer read around 480km when we collected it, but suggested with maximum efficiency (air-con off, driven in Eco mode, etc) we could reach more than 500km.

Energy consumption is rated 21.7kWh, but the EV9 GT was showing 24.2kWh on the trip computer. 

According to Kia, it can take up to 350kW of DC fast charging, which means a theoretical charging time from 10-80 per cent of just 24 minutes. Using a 50kW charger will extend that time to 83 minutes.

Again, in the real-world, using an Evie public charger we were able to add 42.1kWh in just under 34 minutes on a 75kW charger, taking the battery from 40 to 77 per cent.

As we mentioned above the GLC300 Coupe's 48-volt mild hybrid system is not the kind of hybrid that will allow you to drive miles on electric power, nor will it dramatically reduce fuel consumption in the way a parallel, series or plug-in hybrid will. But every bit of efficiency helps.

Mercedes-Benz says the GLC300 Coupe will use 7.7L/100km after a combination of open and urban roads. 

We had the GLC300 Coupe for just two days, but in that time my family covered 176km of regular daily usage which took in motorways but mainly suburban duties such as the school run, supermarket dashes, that sort of thing.

In our fuel test we measured 14.48 litres at the fuel pump which works out to be an on-test fuel use figure of 8.2L/100km and not far off the manufacturer’s claim. 

While this fuel consumption isn’t overly high, a plug-in hybrid or even a parallel or series hybrid could return about 5.0L/100km or less.

Mercedes-Benz has dropped plug-in hybrids from its Australian range which is a shame because it would be good to see more efficient options in the GLC range. Of course if you want more efficiency from a Benz of the same size, there is always the fully electric EQB or EQC.

On paper the EV9 GT sounds great if you’re into performance - 374kW and 740Nm is a lot for any type of car, even a big SUV. There’s no questioning that the EV9 GT is very, very fast, with that near-instant surge forward when you squeeze the accelerator in ‘GT’ mode.

But it is probably worth questioning the value of such a powerful and fast electric SUV, given the EV9 is clearly focused on being family friendly rather than a track weapon. To be perfectly candid, I rarely used the ‘GT’ mode because it just doesn’t suit the vast majority of driving conditions you’ll find yourself in driving an electric SUV.

I mean, you’ll never have an excuse for dropping the kids off at school late, but you’ll also likely rarely find yourself in a situation where you need to launch 0-100km/h in 4.5 seconds too. Obviously the performance is nice to have and helps to justify the asking price, but in day-to-day driving it doesn’t really make a significant difference to the EV9 experience.

Because, when you don’t unleash all that performance, you find yourself in a very quiet and refined SUV. The cabin is well insulated from the outside world, so you do get a sense of luxury, which is a major positive.

The electronically controlled suspension does a nice job of providing a comfortable and relaxed ride even on the big 21-inch alloys. It also does a good job, most of the time, of hiding the weight of such a big, electric SUV, so the chassis and suspension development team have done a great job.

The digital mirrors were also helpful during this test. The first time I tested an EV9 with them I found them a bit odd to use, as the angle you’re looking at on the screen isn’t the actual perspective of the situation. But this time around I quickly adapted to them and can see the merits of such technology.

There’s a lot to like here but the short version is the GLC300 Coupe has a comfortable ride, but good handling, with a responsive engine, although rear visibility through the small back window is poor.

If we drill down a bit further I can tell you that excellent cameras around the car will help you check to make sure kids aren’t running around behind you and that forward and side visibility through the window is good.

An important takeaway is that the GLC300 Coupe is easy to drive with light steering and an engine that’s mild and controlled in its power delivery.

The gear shifter is mounted on the steering column, in the same way an indicator lever is. So putting the car into Drive, Reverse and Park is so easy and means you don’t have to take your hands off the steering wheel. 

As a family car I liked the good body control and composed ride. We have a small toddler that we can sometimes only get to sleep by taking her for a drive and we found that she could nod off and not be woken by potholes and speed bumps or too much leaning in the corners. 

The GLC was given the maximum five star ANCAP rating in 2022. There’s AEB, active lane keeping assistance and active blind spot warning and nine airbags including a centre airbag.

As mentioned above I especially liked the surround-view camera systems - which let you look right around the car - good for driveway safety and kids.

For child seats you’ll find two ISOFIX mounts and three top tether anchor points in the second row.

I was also impressed to see a space-saver spare wheel under the boot floor and not just a puncture repair kit. 

The EV9 is covered by the usual seven-year, unlimited kilometre warranty, albeit with the battery only covered for seven years/150,000km.

Service internals are 12 months or 15,000km, whichever comes first, and Kia offers pre-paid servicing plans from three to seven years. The three year plan will set you back $723, five years $1379 and seven years $2038.

That means the average cost actually increases the longer you’re covered, but even over seven years your yearly average is only $291 in maintenance.

One major positive for the brand’s owners is Kia has grown to 147 dealers nationally, with coverage across both metro and urban areas, with all service centres able to work on EVs. That means you’ll get the same ease-of-service whether you buy a petrol, diesel or electric Kia.

The GLC300 is covered by Mercedes-Benz's five-year, unlimited-kilometre warranty. 

Services are annually or every 25,000km. And you can buy a three-year service plan for about $3000.