Mercedes-Benz GLC-Class vs Audi SQ7

What's the difference?

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.

The Audi SQ7 TFSI is a delight to drive. You can’t fault its handling or power and drivers who want that sort of performance will not be disappointed. However, for the price point I was hoping for sweeter ongoing ownership costs and terms. It's missing a few family-orientated amenities, particularly in the middle row, but it’s big enough to accommodate a large family and all of its gear. So, I give this an 8.0/10.

My son thought the red paintwork and engine were pretty cool and he also gives it an 8.0/10. 

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.

The SQ7 has always had a certain understated glamour about it. It’s usual to see these cars in the monochromatic hues that European manufacturers seem to favour, so it can slip under the radar a little.

Not our example, in its Matador Red, a colour which accentuates the red calipers behind the 22-inch alloy wheels and makes the LED headlights pop.

The nose is pronounced with only a small ‘SQ7’ badge hinting at what’s beneath the long bonnet.

There’s quite a bit you can customise and one of the options is sporty black accents across the bodywork, as per our test car.

The interior hosts a plethora of soft touchpoints, leather trims and shiny black piano finishes to create a premium finish.

The panoramic sunroof and dark grey headliner (which is apart of that Sensory Package) further enhances the sense of luxury.

The sports seats are finished in a Valcona leather trim that’s diamond quilted but the headrests are fixed, which might not thrill taller occupants.

Overall, the SQ7 is a large SUV being 5067mm long, 1970mm wide and 1743mm high.

Those dimensions almost challenge the Kia Carnival, which is a people mover! Make sure it will fit in your garage before buying it. 

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.

It’s missing a few little family items found on other large SUVs but it’s still a fairly practical family car. The cabin is spacious but passenger comfort has been prioritised over storage options.

Front and middle row occupants enjoy most of the room but third rowers will be comfortable on short journeys.

I would be saving these seats for the kids on longer trips, unless you want to get dagger eyes from any adult passengers stuck back there as the amenities aren’t as extensive as you might like with only two cupholders, a reading light and air vents (which aren’t directional).

With the Sensory Package included, the inside is an example of luxury with its heated and ventilated front seats, as well as the heated outboard seats in the middle row.

I love the massage function up front and that it’s customisable for intensity and position. The heated steering wheel is also a nice feature on the chilly days we’ve been having lately.

The tech is quite good with dual 12.3-inch touchscreens stacked on the dash and centre console.

They have haptic feedback, which means they vibrate when you touch them, but curiously this feature disappears while you’re using the wireless Apple CarPlay.

It did take a little while to get used to the Audi system and the haptic feedback, but once you do it’s easy to handle. There’s Bluetooth, digital radio, wired Android Auto and built-in satellite navigation, too.

The head-up display is super clear and displays the sat nav guidance and speed. What I really love is the four-zone climate control – meaning the middle row can get some further adjustments for ultimate comfort.

Charging options are okay with the front enjoying a wireless charging pad, two USB-C ports and a 12-volt socket. Middle row passengers also get a couple of USB-C ports but third rowers miss out.

I was surprised by the lack of storage throughout and this leads me to think this would suit older families best. For example, the middle console is large enough to only fit a phone. Still, each row gets two cupholders and a drink bottle holder in each door.

The boot is an acceptable size with all seats in use at 295L but with the third row stored, it jumps up to a more respectable 770L. There are stacks of different storage accessories available to purchase, if you need extra space.

The third row is a 50/50 split and the middle row has a very practical 35/30/35 split, which opens up the storage options.

The level load space is handy for the grocery run. But there’s no underfloor storage, and you don’t get a spare tyre, just a puncture repair kit.

A powered tailgate is handy, although this one's a bit faster than others I’ve sampled.

The SQ7 is a performance SUV and that means you’re paying for some heavy-hitting engine specs. As such, expect to pay $166,400 before any on-road costs or optional extras.

That puts it just under the cheapest of its competitors, so it doesn’t feel outrageous for what you get.

Our model has been finished in 'Matador Red' and I was pleased to see paintwork options are included in the base price (as they should be).

Our model does have the 'Sensory Package', which adds $13,300 to the price tag but that bundle includes some cool features like an extended leather dashboard, a synthetic suede headliner, an 'Advanced 3D' 23-speaker Bang & Olufsen sound system, an air quality system (with built-in perfume!), a front seat massage and ventilation function and heated rear outboard seats.

Even without the package, it’s still fairly well-specified with its diamond-quilted 'Valcona' leather trim, HD Matrix LED lighting, customisable ambient lighting, as well as wireless Apple CarPlay and Android Auto to name just a few.

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 new TFSI engine in the SQ7 is monstrous. It’s a 4.0-litre twin-turbo petrol V8 with maximum outputs of 373kW/770Nm.

To say it’s powerful is an understatement. This would be at home on the autobahn and my son cheered whenever I had to get up to speed.

It, of course, replaces the SQ7’s iconic diesel V8. The old TDI unit had 53kW less power but 130Nm more torque. However, the new engine delivers on power with aplomb.

The eight-speed auto transmission glides effortlessly through its changes and the all-wheel drive drivetrain is responsive.

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.

With great power comes… okay fuel efficiency. Actually, better than okay considering the twin-turbo V8 engine. The official combined cycle fuel figure is 11.9L/100km and real-world testing saw my figure at 13.2L.

Considering how hard I drove this and the type of driving I did this week, which was a combo of open-road and urban, this is very respectable. Expect it to be much higher in the city, though.

The SQ7 has a large 85-litre fuel tank and based on the official combined figure, you should be able to get around 714km of driving range. That isn’t as great as more fuel-efficient options but still good for those who like their road trips.

Audi recommends a minimum of 95 RON premium fuel with a preference for 98 RON for ultimate efficiency.

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 performance is awesome and I made excuses all week to hop in and drive it. It doesn’t hurt that when you press the push-button start, the engine rumbles and growls. There’s even a ‘spitting’ sound as the turbo fires up. It all promises fun.

While the power feels immense, you do have to get used to how to handle it. For example, when you first shift into gear and pull your foot off the brake, the car lurches forward as if it’s rearing to go. It took me a couple of days to get used to the little quirks of it. 

The steering is controlled and responsive, adapting to the conditions and speed at which you’re driving. If you’re accelerating hard, the steering turns a little stiff and the seat belt tucks you into your seat, reaffirming the addition of that S in the model name.

The cabin is very quiet and there’s no shuddering or vibration to be felt through the steering or seat.

The SQ7 features sports adaptive air suspension and it's dependant on how you drive and what drive mode you’re in. It makes for an extremely comfortable journey and not just for those in the front. The rear passengers are nicely cushioned, too.

This is a big car but you don’t feel those dimensions when you park it. Even with its 12.4m turning circle, it’s not cumbersome with the adaptive steering.

The dynamic 360-degree view camera is super clear but the parking sensors are too sensitive for my liking. It might just have been an oddity on the particular model I drove but the emergency braking did pop on a few times (scaring the hell out of me every time!).

The SQ7 has a healthy suite of safety features with the following being standard: LED daytime running lights, lane departure alert, lane keeping aid, blind-spot monitoring, rear cross-traffic alert, dynamic 360-degree view reversing camera (it turns with the direction of the steering wheel), dynamic parking guidelines, front and rear parking sensors, rear occupant alert, intelligent seatbelt monitoring and adaptive cruise control.

It also features an active bonnet, meaning it will lift up and away from the engine if the sensors detect that a pedestrian has been hit. As well as an SOS emergency call button.

It has AEB and forward collision warning with car, pedestrian and cyclist detection which is operational from 10-85 km/h (10-250 km/h for car detection). It is usual to see it operational from 5.0km/h, though.  

The SQ7 achieved a maximum five-star safety rating from testing conducted in 2019. It only has six airbags, which is fairly low for a family car, but that does include curtain airbags covering all three rows.

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.

If I was spending my hard-earned cash on a vehicle like this, I would want to be treated like a queen when it comes to servicing.

Manufacturers should sweeten the pot when it comes to on-going servicing and ownership terms when you’re at this level but the SQ7 just comes with a pretty standard five-year/unlimited km warranty.

You can pre-purchase a five-year/75,000km servicing plan and it will set you back a total of $4100 (or an average of $810 per service), which is expensive but not outrageous for a performance vehicle.

Servicing intervals are reasonable at every 12 months or 15,000km, which is good.