Land Rover Discovery Sport vs Mercedes-Benz GLC-Class

What's the difference?

The Land Rover Discovery Sport P300e has a beautiful and practical cabin space. The powertrain didn't always convince me on the road but it does offer decent economy, if you charge it often.

The media system left a lot to be desired and having to pay around $15K extra for all of the customisations means it's not as affordable as what it initially seems. Still, if you’re looking for a plug-in hybrid with a great cabin and on-road looks, this is a good option.

Like I said right from the start, this new, hybrid version of the AMG GLC63 is technically superior to the model it replaces in every meaningful way. It is faster, more powerful and more fuel efficient and therefore a better performance SUV than the model it replaces.

Is it a better model than the one it replaces? Ultimately that will come down to how much stock you put into the soundtrack and your feelings on an AMG not powered by a V8 engine.

Because if you can see past that, then the AMG GLC63 is an absolutely fantastic performance SUV. Not only does the new powertrain make it faster in a straight line, but the chassis is very well-balanced, making for an engaging driving experience.

For those who can look past the smaller engine they will be rewarded with an incredibly fast and rewarding-to-drive member of the AMG family.

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

The updated Disco Sport gets new underpinnings which are shared with the Range Rover Evoque.

The body has seen a minor facelift but honestly, it’s so slight only die-hard fans will notice anything different. Overall, it still has the styling that people know and love.

It’s once you head inside that the facelift becomes far more apparent. Gone is the more traditional looking e-shifter and in its place is a rather nubby-looking one.

The dashboard looks more streamlined and features wider padded accents and in our test model, we have the Oyster and Black upholstery which does make it look quite luxurious. There are a few too many blank spaces for me personally but it looks slick.

Accentuating the dashboard is a floating-effect multimedia system and a large digital instrument cluster – both of which look great but there are no other control buttons or dials. I’m not a fan of the fact that you’re 100 per cent reliant on the tech screens and I'll explain why in the Practicality section.

The optioned panoramic roof makes the cabin feel airy and it's cool that it has a memory function – it will close when you turn off the car but reopen upon starting again.

The GLC63 is unmistakably an AMG from the moment you first lay eyes on it. That’s thanks to the AMG-specific elements, starting with the grille with vertical strikes and the AMG crest on the bonnet; which is now a signature item for the performance sub-brand.

The GLC63 is also fitted with the Night Package II design kit; this adds a darkened grille and black chrome badging to further enhance its visual appeal.

The AMG-specific alloy wheels and more aggressive stance do mean the GLC63 stands out from the rest of the GLC range, helping it look fast even when it’s standing still.

With it's 4597mm length, 2173mm width and 1727mm height, the Discovery Sport is technically classed as a medium SUV but the cabin space is much larger than it has any right to be.

Both rows have ample head- and legroom for both my 168cm (5ft6') height and those much taller. When you have a co-pilot, you’re also not jostling for elbow room and it’s easy to slide in and out of because of the 212mm ground clearance.

The amenities up front are good with the update seeing more decent sized individual storage options.

There are two cubbies in the centre console as well as two cupholders and a medium-sized middle console. The glove box can hold more than a manual and the storage bins with their single drink bottle holders are also larger than before.

The powered front seats are comfortable and the optioned heat functions are most welcome on the cooler days we've been having lately.

The back seats also have superior padding comfort but you sit on top of, rather than in, them which is typical of an SUV.

The amenities and storage are what you would expect for the grade level with a fold-down armrest with two cup holders and small storage cubby, directional air vents, reading lights, map pockets and small storage bin in each door.

There is also an accessory hole to attach device holders on the backs of the front seats - perfect for hooking up a screen for little ones on a long journey.

The P300e loses points on its practicality with the multimedia system. You eventually get used to using it while on the go, even though the lack of buttons/dials means more time is spent with your eyes on the screen.

That's when the screen turns on. The display has cut out a few times this week and the wireless connectivity for Bluetooth and the connection for Apple CarPlay (wireless or wired) drops out a lot.

The P300e I'm driving is brand-spanking-new, so it may just be a case of something that needs calibrating but for a lot of the Land Rovers I've sampled in the past, the media system seems to be the area with the biggest teething issues.

That being said, the built-in satellite navigation is top-notch and easy to use. The directions also get displayed on the instrument cluster and optioned HUD.

The charging options are excellent with the front row getting three USB-C ports and a large wireless charging pad. The rear gets two USB-A ports and two USB-C ports plus a 12-volt socket and the boot also has a 12-volt socket. Totally spoiled for choice.

The boot is a great size at 897L with all seats in use and that jumps up to 1749L when the rear seats are folded flat. The rear row also has a 40/20/40 split, which opens up storage opens.

There is a temporary spare tyre housed underneath the flat floor and a powered tailgate comes standard in this model, which I always like.

Inside the GLC63 is clearly a derivative of the rest of the range, with its C-Class-inspired design and layout, but there’s enough AMG-specific elements to ensure it looks and feels special. This starts with the AMG steering wheel, which comes not only with a thick rim wrapped in Alcantara, but also some AMG special dials to adjust the various performance settings for the powertrain, suspension and transmission.

Then there are the AMG-specific seats, which look good and offer good support for the driver and front seat passenger. The rear seats offer decent space for what is a mid-size SUV, with room enough for two adults or teenagers or three smaller kids.

Those in the back aren’t particularly well looked after though, with only rear air-con vents and small door pockets but no USB charging ports or other small item storage.

The boot is 590 litres, down from 620L in the rest of the range, thanks to the addition of the rear-mounted electric motor. There’s also no room for the temporary spare the rest of the GLC range gets and instead you have to make do with a puncture repair kit.

The power and torque figures aren’t the only numbers that have risen sharply, with the GLC63 clearly impacted by a double whammy of inflation and the usual new-car price rise.

The GLC63 now starts at more than $191,814 for the SUV and $198,415 for the Coupe, which represents a nearly $30k increase over the old V8-powered model, which was priced at $164,600 just two years ago. Even for luxury car buyers that’s a big jump, especially when you’re trying to convince people of the merits of the four-cylinder powertrain. 

That also means it's more expensive than all of its key competitors, including the BMW X3 M Competition, Maserati’s Grecale and the outgoing, petrol-powered Porsche Macan GTS.

To help explain some of this price increase Mercedes-Benz Australia has opted for a high level of standard specification for local cars. Standard equipment includes 21-inch alloys, AMG composite braking, a panoramic sliding sunroof, a unique AMG steering wheel, power-adjustable sports seats in Nappa leather, a head-up display, dual-zone climate control, wireless smartphone charging and a Burmester 3D Sound system.

Also included is the AMG Track Pace suite, for those who want to unleash their GLC on the racetrack.

There’s also a limited run, AMG Edition 1 Package available too, for an additional $12,900. On the outside you get Manufaktur graphite grey magno paint, foiling with colour gradation and large AMG logo on the sides, an AMG Aerodynamics Package, unique alloy wheels with Edition 1 and AMG branding, yellow brake calipers and an AMG fuel filler cap in silver chrome with AMG lettering. 

Inside there’s AMG Performance seats, AMG Nappa leather in black with yellow contrasting stitching, AMG illuminated door sills,  carbon-fibre AMG trim highlights, yellow seat belts and a unique AMG Performance steering wheel wrapped in carbon-fibre and microfibre.

The Discovery Sport P300e has a 1.5-litre, three-cylinder plug-in hybrid turbo-petrol engine with an eight-speed auto transmission and is an all-wheel drive.

The engine produces a combined power output of 227kW and 540Nm of torque. On paper, it’s punchy and can do a 0-100km/h sprint in 6.6 seconds but in practice, it’s not always great at using that power.

This is what lies at the heart of the AMG GLC63’s success or failure. As I mentioned at the beginning, the previous generation’s 4.0-litre twin-turbo V8 has been replaced by an F1-inspired plug-in hybrid powertrain.

But don’t think that means AMG is suddenly focused on efficiency over performance. When AMG says the powertrain is inspired by the brand’s success in Formula 1 racing, what it means is the battery and electric motor provides a significant performance boost to support the internal combustion engine, not just save fuel.

To that end the combination of the turbocharged 2.0-litre four-cylinder petrol engine and the rear-mounted electric motor produces an impressive 500kW and 1020Nm. That’s a massive jump over the 375kW/700Nm made by the outgoing V8.

The official combined fuel cycle consumption figure is 2.1L/100km and my real-world usage sits a 4.8L/100km after doing some open-roading and lots of urban trips this week. For an SUV of this size and with it's power, that's pretty darn good.

The trick is to regularly charge it for maximum fuel economy gains and that's not always practical.

Officially, you get up to 66km of pure electric range in this but expect closer to 47km in the real world. 

The P300e has a Type 2 CCS charging port which means you can hook this up to a fast charger. On a 50kW system, you can go from 0-80 per cent in as little as 30 minutes but on a 7kW system, going from 0-100 per cent jumps up to to two hours and 12 minutes.

Expect to leave it on charge overnight on a standard domestic socket.

The driving range based on the official combined fuel cycle is obscene, and I can't see it happening in real life - so, based on my fuel economy figure and the 58L fuel tank, expect a theoretical driving range of up to 1208km.

Mercedes makes no secret that the battery is designed for performance, not saving fuel. It only has a 14km EV range but can recharge quickly on the move to provide a power boost when needed.

But despite all that, the GLC63 is actually significantly more fuel efficient than the old V8, using a claimed 7.3L/100km, which is a massive 4.9L/100km improvement over the old model. Although, on our day-long test drive we didn’t manage to come close to that claimed figure and instead saw returns around 11L/100km, albeit after a lot of spirited open-road driving.

The Discovery Sport P300e has the goods on paper when it comes to power and it does... once you're up to speed. That's when you can punch it and feel confident at overtaking or keeping your speed consistent on hills.

It's when you're accelerating from a full-stop that it becomes a bit lacklustre as there's serious lag between accelerating and actually moving forward. Accept that you will have to accommodate for this inaction whenever you are joining or crossing traffic from a standstill.

Besides this little hiccup in the power delivery, handling on the whole is good.

The Disco Sport is easy to manoeuvre and you don’t feel like you’re driving something big, despite the ample cabin space. It also handles itself well in corners without too much roll.

The switch between the electric and petrol components isn’t always the smoothest but when it’s in its electric mode it’s blissfully quiet. The cabin feels refined too because you don’t get a lot of external noise in the cabin at all.

The wide windows and higher ride means visibility is great and the optioned digital rearview mirror adds another viewpoint if the back window isn’t clear.

The Disco Sport proves to be nimble and easy to park with the optioned and clear 360-degree camera system, and the sensors at the front and rear are sensitive.

Anyone who still believes in the adage ‘there’s no replacement for displacement’ hasn’t driven a modern turbocharged and hybridised engine. The GLC63 is a demonstration of the metaphorical and literal power of modern technology, combining an extremely efficient and potent internal combustion engine with an electric motor to make enormous real-world performance.

To be blunt, the GLC63 feels like a rocketship out of corners, launching with a ferocity and relentlessness the old V8 simply can’t match. It shouldn’t come as a surprise, a mid-size SUV with 1020Nm was always going to have plenty of performance, but even so it’s a shock to the system every time you give the GLC63 full throttle. Officially AMG claims it takes just 3.5 seconds to run 0-100km/h and has an electronically limited top speed of 275km/h - mighty impressive figures for a five-seat mid-size SUV.

To help get all that torque to the road, AMG deploys torque distribution technology that allows for it to be split an even 50/50 front/rear all the way to 100 per cent to the rear tyres.

Other technologies deployed to enhance its handling include AMG Ride Control suspension with adaptive damping and rear-axle steering. There’s also eight AMG Dynamic Select driving modes and four AMG Dynamics settings (Basic, Advanced, Pro and Master), so it’s a complex vehicle that is designed for the enthusiast.

While it’s easy to drive around town, once you get out on the open road you can really get a sense of the GLC63’s performance potential. Beyond just its powertrain the suspension offers good body control and the rear-axle steering helps it feel agile and responsive. 

It’s not perfect though. At times the complexity of the system does lead to some hesitation when you put your foot down. It certainly lacks the linear power delivery of the old V8 and makes for a slightly trickier driving experience at times.

As for the sound, which is one of the biggest elements missing from the V8, Mercedes has added AMG Real Performance Sound, which features a pressure sensor in the exhaust that picks up on the engine note and plays it through the speaker system. It certainly helps make for a louder, more noticeable engine noise, but it still sounds more like an A45 than the previous GLC63 and for many would-be buyers, that’s a major turn-off.

The GLC63 comes standard with a comprehensive suite of safety features including 'Distronic' (Mercedes’ name for adaptive cruise control), 'Active Lane Keeping Assist', 'Blind Spot Assist', 'Traffic Light Assist' and 'Adaptive Highbeam Assist'. It also includes Mercedes’ 'Pre-Safe' accident anticipation system - which pre-tensions the seat belts and will even play a white noise to protect your ears if it senses a crash is imminent.

A parking system that includes a 360-degree camera and active parking assist is also included.

The GLC range was awarded a five-star ANCAP rating in 2022, which pre-dates the latest testing protocols, so doesn’t provide a like-to-like comparison for vehicles tested after that date.

The Discovery Sport comes with a five-year/unlimited km warranty and the battery is covered by an eight-year/ 160,000km warranty which is a usual term to see for this class now.

There is a five-year capped-price servicing program which costs a flat $2100, or $420 which is both reasonable for the class and is more affordable than a pay-as-you-go option. There is also a five-year roadside assistance program as a part of your servicing plan through Assist Australia.

Servicing intervals are great at every 12 months or 20,400km, whichever occurs first.

The GLC63 is covered by Mercedes Australia’s usual five-year/unlimited kilometres warranty.

As for maintenance, Mercedes offers service plans, spanning three to five years. Three years will cost you $5025, $6455 for four years and five years is priced from $7180. Servicing intervals are 12 months or 20,000km, whichever comes first.