Abarth 595 vs Mercedes-Benz GLC300

What's the difference?

It’s tough to be kind to the Abarth 595. Based on a platform that’s more than a decade old, the car has been left behind by its rivals in many ways, including basic ergonomics and its value equation.

The larger engine does work well in this smaller package, and its road-holding ability belies its size. However, only die-hard fans of the Abarth brand will be able to cope with the uncomfortable seating position and a complete lack of even the most perfunctory features that cars costing $10,000 less are able to offer.

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.

Despite being based on a design that’s a decade old, the Abarths still stand out. Based on the classic Fiat 500 shape of the 1950 and '60s, it’s more cute than cut-throat, with a narrow track and tall roof giving it a toy-like presence.

The Abarth attempts to beef things up with deep front and rear bumper splitters, go-fast stripes, new headlights and alternate-colour wing mirrors.

The 595 rides on 16-inch rims, while the Competizione runs 17s.

Inside, it’s definitely different to most mainstream cars, with colour-coded plastic panels on the dash and a very upright seating position, along with a dual-tone steering wheel.

It’s a love-it-or-hate-it proposition. There’s no middle ground here.

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.

This is another area where the Abarth falls down. First and foremost, the seating position for the driver in both cars is utterly compromised.

The seat itself is mounted far, far, too high, and has little adjustment in any direction, and there is no reach adjustment in the steering wheel column to allow a taller (or even an average height) driver to get comfortable.

The more expensive Competizione we tested was fitted with a set of optional sports bucket seats from racing company Sabelt, but even they are mounted literally 10cm too high. They are also ultra firm, and even though they look supportive, lack decent side bolster support.

The tiny multimedia screen is okay to use, but the buttons are miniscule, while there’s a complete lack of storage places in the front. 

There are two cupholders under the centre console, with two more in between the front seats for rear seat passengers. There are no bottle holders in the doors and no storage for rear seaters.

Speaking of the rear seats, they are the very definition of cramped, with little headroom for moderately sized adults and precious little knee or toe room. There are two sets of ISOFIX baby seat mounting points, though, should you fancy wrestling your wriggling toddlers through the narrow aperture.

The seats flip forward to reveal more cargo space (185 litres with the seats up, and 550 litres when the seats are down), but the seat backs don’t fold flat into the floor. Under the boot floor is a can of sealant and a pump, but no space saver spare.

In truth, it was a long day testing this car… at 187cm, I simply could not get comfortable in it at all.

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.

The Abarth 595 pair use the same 1.4-litre 'MultiJet' four-cylinder turbo engine in differing states of tune. The base car makes 107kW/206Nm, while the Competizione makes 132kW/250Nm, thanks to a freer-flowing exhaust, a larger Garrett-branded turbocharger and an ECU re-tune.

The base car can do 0-100km/h in 7.8 seconds, while the Competizione is 1.2 seconds quicker; the optional 'Dualogic' automatic is 0.2sec slower to the mark in both cars.

A five-speed manual gearbox is standard, and neither car is fitted with a limited slip diff.

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.

Over 150km of testing, the Competizione consumed a dash-indicated 8.7 litres per 100km, against a claimed combined fuel economy figure of 6.0L/100km. Our brief test of the 595 revealed a similar number, against the same claimed figure.

The Abarth will only accept 95 octane fuel or better, and its small 35-litre tank is good for a theoretical 583km between fills.

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.

Ergonomics aside, the combination of torquey engine and lightweight car is always a good one, and the 1.4-litre turbocharged four is a good match with the front-drive Abarth.

There’s always enough mid-range urge to give the Abarth the hurry-up, and the longer-legged five-speed gearbox is a good match for the engine.

It also grips and turns surprisingly well, despite the Sport button adding too much artificial weight to the Abarth’s steering feel. 

That same button also firms up the front dampers on the 595 and all four on the Competizione, which works well on smoother terrain, but stiffens it too much over more undulating surfaces.

Around town it can be hard to strike a good balance between ride and comfort. The difference between soft and firm is much more pronounced in the Competizione, but it will still get tiring if your commute is a bumpy one. 

The turning circle, by the by, is ridiculously large for such a small car, making u-turns - already compromised by the lower front bumper - unnecessarily fraught.

The Monza exhaust on the Competizione gives it a bit more presence, but it could easily be louder (or at least more crackly) again; you’re not buying this car to be a wallflower, after all.

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. 

A three-year/150,000km warranty is offered as standard on the Abarth 595 range, with a suggested service interval of 12 months or 15,000km.

Abarth importer Fiat Chrysler Automobiles Australia offers three fixed-priced services for the 595 range at 15,000, 30,000 and 45,000km, with the first costing $275.06, the second $721.03 and the third $275.06.

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.