Mercedes-Benz GLC300 vs Porsche Macan

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.

There is no doubting the substance of the Porsche Macan Electric. Its ride, steering and poise make it a joy to drive on twisting roads, and it ticks the practicality boxes, too.

The only lingering question is whether enough people are ready to make the all-electric switch. Only then will we know if Porsche's Macan gamble has paid off.

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

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 Macan Electric looks sharp, all aerodynamic and swept-back like a range-maximising electric SUV should.

There’s functional method behind all this swoopy styling, too. The headlights look as though they’ve been chiselled into the body work, and at the grille, you’ll find active venting to help with cooling when needed.

There is also a sizeable front splitter that looks very much like the Macan is sticking its jaw out. All of which is to assist with aero and range.

It’s also a dual charging port layout with access left and right, though the latter is AC charging only, while the one on the left does both.

Step inside the Macan and you’ll find a familiar and very welcoming space. I especially like the twin-screen set-up that looks great in the way it's kind of embedded into the dash. Each is big, clear and easy to use.

I also really like the control panel that gives you quick-button access to the climate control, and the haptic feedback is next level, with the whole screen clicking in or out whenever you hit a button.

That said, in Turbo-guise you’re dropping almost $200,000, and some of the materials feel too hard and plasticky at that price point.

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.

There is a little open-sesame magic at play with the Macan, and that starts at the frunk, where, if you lovingly caress the bonnet, it will automatically pop open for you, revealing an 84-litre storage space.

Rubbing the charging port will see it slide open, too, but just in case you’re not the kind of person who likes to fondle their car in public, you can use the key.

The Macan’s boot is a little more traditional, opening to reveal 540 litres (but just 480 litres in the 4S or Turbo) of storage with the rear seats in place, with a wide, flat and very useable area for your goodies.

The back seat of the Macan feels spacious enough, without being outstanding. There’s more than enough space for my 175cm frame, with enough knee and head room, but the way the middle console juts out will definitely eat into leg room for any middle-row passenger.

Elsewhere you get air-con controls with vents, along with bottle storage in each of the doors. There is also a pull-down divider that’s home to two extra cupholders.

The Macan arrives with four trim levels, the entry-level Macan, the Macan 4, Macan 4S and then the flagship Macan Turbo. The latter is just a name Porsche now applies to its go-fast models — obviously there isn’t an actual turbo in action.

The new electric range opens with the Macan, which lists at $128,400, before on-road costs. A reminder here that the old entry-level Macan with an ICE powertrain would have set you back less than six figures, so this one represents quite the jump.

Now, it should be pointed out that you can still buy the previous-generation ICE Macan, at least until supply runs dry. The brand isn’t getting any more, but suggests there are enough in the country to satisfy demand until around Q2 next year.

Next is the 4, which is $134,400 and adds a second e-motor. Then comes the 4S, yours for $149,300, before the range tops out with the Turbo, which climbs to $184,400. All prices before on-road costs.

Those are big numbers, but at least Australian-delivered cars are some of the best-specified on the planet. 

That starts with the Macan, which gets a 12.6-inch digital instrument cluster, and a second 10.9-inch central touchscreen with Apple CarPlay and Android Auto.

It rides on 20-inch alloys, has synthetic-leather seats that are heated up front and Australian cars get things like the clever 'Porsche Active Suspension Management' (PASM) system as standard.

Next up is the Macan 4, which adds a second electric motor, but otherwise largely mirrors the base car’s spec. Next on the list is the 4S, which rides on a different 20-inch alloy, picks up LED matrix headlights, sports a better Bose stereo, a panoramic roof and four-zone climate control.

Finally, the Turbo is the big dog of the electric Macan range, packing serious power, but also arriving with its own 20-inch alloy wheel design (with 21-inch wheels a no-cost option) — an augmented reality head-up display, and things like the 'Porsche Electric Sport Sound', the 'Sport Chrono Package' and a performance-focused 'Sport+' drive mode.

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 entry-level Macan is equipped with a single rear-mounted electric motor, and it will make a total 250kW (265kW with launch control activated) and 563Nm, which is enough to push the cheapest Macan to 100km/h in 5.7 seconds.

The 4 then adds a second electric motor for AWD, upping the grunt to 285kW (300kW with the launch function) and 650Nm, and drops the sprint to a brisk 5.2 seconds.

The 4S is probably the performance sweet spot, with its dual-motor set-up generating 330kW (380kW in launch) and 820Nm, and a blistering sprint of just 4.1 seconds.

But the Macan Turbo is a true monster. We’re talking 430kW (470kW with launch control), 1130Nm and a sprint to 100km/h that’s as fast as a Carrera Cup race car – just 3.3 seconds.

It’s twin-motor, all-wheel drive and offers the kind of brutal acceleration that gives you a little facelift every time you step on the accelerator.

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.

Every Macan is fitted with a big 100kWh lithium-ion battery, which helps deliver a solid driving range no matter which one you choose.

The entry-level Macan will cover the most distance, at a claimed 654km, while the 4, 4S and Turbo will travel 624km, 619km and 616km, respectively.

The Macan rides on an 800V architecture, and is set up for 270kW DC high-speed charging, which will take 21min to go from 10 to 80 per cent. It will also accept 11kW AC charging, which should take 10 hours to go from empty to full.

Worth noting, though, that most home wall boxes are around 7.0kW, which means a full charge would take more like 13 hours plus.

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. 

Porsche seemed at pains to prove that, though the all-electric Macan has lost its ICE heart, it's still worthy of the badge, and still very much a Porsche.

First stop, then, was the Norwell race circuit in Queensland, to put the Macan through its paces with 0-100km/h sprints, drifting (well drift attempts... ) on a watered-down skid pan and finally some high-speed running on the circuit.

And two things immediately became very clear. The first, and most obvious, was that, like the first men on the moon, we were likely among only a handful of people that might ever take their all-electric Porsche mid-size SUV to a race track. And second, this is one seriously sorted electric car.

Happily, for the many (read: every) owners who won't be pulling out of a pit garage at their next local track day, the Macan is actually more enjoyable on the road than it is on the track.

On the latter, there's a freedom to push too hard – what with the lack of trees, guard rails or oncoming traffic – and cracks do appear, mostly from the screaming tyres struggling with the two-tonne-plus weight.

But on public roads, where a thick fog of consequence prevents you pushing too hard, the Macan is a gem.

Porsche tends to have a knack for these things, I know, but the Macan is a seriously smooth and satisfying drive.

The ride is bang-on (comfortable enough on rougher surfaces, firm and grippy enough on twisting roads) and the steering is direct and confidence-inspiring.

Body-roll has been largely banished, too, with the Macan staying flat, stable and satisfying, even on the tighter stuff.

In much the same way the ICE Macan defined what it meant to be a driver's SUV, I think this one does the same in the EV space. And the fact that it does it with five seats and a decent boot is a sizeable bonus.

But there's no denying it lacks in the emotion department. That sense of excitement, the sound track, the hard-to-define fizz – as competent its this, and as weaponised as the EV powertrain is – it does feel a little clinical, like a tool doing its job and doing it well.

One important caveat. We've driven the 4 and Turbo to date. The entry-level Macan and the mid-tier 4S are still incoming. And I suspect I wouldn't be dropping my deposit on the Turbo.

Yes, the power is ridiculous, but I don't reckon you need it. For me, the 4 is more than enough, but I suspect the real performance sweet spot will be with the 4S.

The Porsche Macan Electric is yet to be assessed by ANCAP, or by Europe’s NCAP, but it doesn’t appear to be missing any key equipment from its safety list.

That includes curtain airbags that extend all the way to the boot, AEB with pedestrian detection, lane keeping assist, a surround view camera and 'Intersection Assist'.

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.

The Porsche ownership experience is frankly underwhelming by modern standards, with the brand offering just a three-year/unlimited kilometre warranty, plus an eight-year/160,000km battery warranty.

The positive, though, is that servicing should only be required every two years or 30,000km. You also buy a prepaid service plan for three, four or five years, priced at $1495, $2795, $2995.