Mercedes-Benz GLB-Class vs Land Rover Discovery Sport

What's the difference?

It’s easy to say the GLB35 doesn’t deserve to be called an AMG when looking at its credentials on paper, but get behind the wheel and it’s evident Affalterbach played a key role in making it feel as special to drive as it should be.

The GLB35 has all of the great qualities of the GLB250 and other GLB variants, but successfully adds a performance focus to make for an even more compelling package.

Indeed, the GLB35 proves you can pretty much have it all.

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.

With the boxy and therefore rugged-looking GLB laying some great foundations, it’s no surprise the GLB35 looks pretty damn good – to these eyes, at least.

Being an AMG model, it stands out from the crowd with an aggressive body kit, with the chunky bumpers, aerodynamic roof spoiler and racy rear diffuser all unique alongside the now-signature Panamericana grille insert.

A set of 20-inch alloy wheels with 255/40 tyres ups the ante at the side, where the carryover black plastic wheel-arch and skirt cladding serves as an obligatory reminder that this is an SUV.

Also of note are the nicely designed LED headlights and tail-lights, which literally light the way, but there’s no getting past the bespoke diffuser element, which integrates the sports exhaust system’s dual 90mm tailpipes.

Inside, the GLB35 is a technological tour de force, with a pair of 10.25-inch high-resolution displays proudly sitting side by side atop the dashboard, with one the central touchscreen and the other the digital instrument cluster.

Both are powered by Mercedes-Benz’s MBUX multimedia system, which arguably remains the best there is today thanks its speed and breadth of functionality and input methods.

The GLB35 is also properly premium. Lugano leather upholstery covers the seats and armrests, while Nappa trims the sports steering wheel. Even the door shoulders and inserts get ‘cow hide’, although theirs is of the artificial variety.

Soft-touch materials are used for the upper dashboard, leaving hard plastics to the lower sections, which is what you’d expect for the price.

While the black headliner makes for a dark cabin, brightness comes from the metallic trim used throughout, notably on the steering wheel, dashboard, doors and centre console. And let’s not forget the pop of colour provided by the addictive ambient lighting.

And mercifully, scratch- and fingerprint-hungry gloss-black accents are limited to the surrounds of the turbine-style front air vents, dual-zone climate controls and centre console.

Unique to the GLB35 are Carbon Structure trim and stainless-steel sports pedals, just in case you forgot you weren’t driving a regular GLB.

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.

Measuring 4650mm long (with a 2829mm wheelbase), 1845mm wide and 1660mm tall, the GLB35 is more like the GLC43 in size than the GLA35, making it a mid-size SUV despite its small underpinnings. And that is good news for practicality.

Cargo capacity with the 50/50 split-fold third row stowed is more than solid, at 565 litres (VDA), but it can be increased to a cavernous 1800L with the 40/20/40 split-fold middle bench also not in use. If six or seven passengers are onboard, though, there’s very little room to move.

Nonetheless, the boot is still well packaged, featuring a huge aperture, no load lip, and a flat floor, which make loading and unloading bulkier items a hell of a lot easier. And even the load cover can be stored underfloor when out of action. How good.

There are also four tie-down points, two bag hooks, a side storage net and a 12V power outlet on hand to make matters even easier, while the rear seats can be stowed from the boot.

While we’re on the topic, Mercedes-Benz says the third row can accommodate passengers up to 168cm tall, with the middle bench able to slide fore and aft by up to 140mm.

Yes, I'm too tall, at 184cm, but I can still sit in the very back, although not in total comfort. All in all, about a centimetre of legroom and negligible headroom and toe-room are on offer there for me.

That said, getting in and out in the first place is the real challenge here, with the middle bench unable to tumble forward for easy ingress and egress. Yep, you’re not going to look smooth either way. Children can deal with it, but adults won’t be thrilled.

Therefore, the middle bench is the place to be, even when it’s slid all the way forward. Behind my driving position, it offers about a centimetre of legroom, but this can be increased to several inches by sliding it all the way back.

Either way, plenty of toe-room is available alongside more than an inch of headroom. The latter is more impressive when you consider that’s what you get with the standard dual-pane panoramic sunroof fitted.

Even better, the second row can seat three adults at a pinch, partly thanks to the low transmission tunnel, which means there’s the right amount of space for six fully grown feet across the two footwells. It goes without saying children will again be fine.

Speaking of which, four ISOFIX and five top-tether anchorage points are on hand for fitting up to four child seats across the second and third rows, which makes the GLB35 a serious option for families that like to be sporty.

There are plenty of in-cabin storage options, with the large central storage bin featuring a pair of USB-C ports, while the glovebox is also quite useful, even if it is oddly shaped. And there’s also a sunglasses holder in front of the rearview mirror.

The centre console’s cubby isn’t really designed for storage, with it basically taken up by two cupholders, another USB-C port and a wireless smartphone charger.

The front door bins can accommodate one small and two regular bottles each, which is great, while their rear counterparts can take one small and one regular apiece.

Second-row occupants also have access to a fold-down armrest with another pair of cupholders, but being of the retractable variety, they’re flimsy.

These passengers also have two USB-C ports, with the pair folding out below a small cubby and air vents, which are found at the back of the centre console. Storage nets are also fitted on the front seat backrests.

And don’t worry; the third row gets in on the action, with two cupholders (one regular, the other small) splitting the seats, which have individual USB-C ports and device straps to the sides.
 

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.

The Discovery Sport is offered in four grades and the model on test in this review is the plug-in hybrid mid-level P300e.

The P300e is priced from $102,125 before on road costs but the addition of the plug-in hybrid powertrain means that it is actually $8855 more expensive than the flagship HSE.

In terms of its rivals, the P300e sits towards the middle of the line-up with the Volvo XC60 Recharge Plus PHEV coming in as the most affordable at $92,990 before on-road costs, then the Lexus NX450+ PHEV at $93,498. Sitting at the more expensive is the Audi Q5 55 TFSIe at $106,600 and then the BMW X3 xDrive30e M Sport PHEV at $111,800.

However, our test model does have a few optioned extras which ups the price tag and its position in the pack.

Those options include:

- A Technology Pack for $4700 which adds a digital rearview mirror, head-up display, and a 360-degree camera system with wade sensors.

- A fixed panoramic roof for $3040.

- Upgraded Meridian Surround Sound System for $2220.

- Upgraded 20-inch alloy wheels for $2080.

- Heated front seats for $860.

- Home charging cable for $520.

- Titanium mesh trim for $420.

All of that brings the grand total to $117,290, before on roads. Which is no small lump of change for what is essentially just a baby Land Rover.

Standard luxury and practical features include powered front seats with a three-position memory function for the driver, synthetic leather upholstery, keyless entry, push-button start, powered tailgate, temporary spare-tyre, and dual-zone climate control.

Technology includes an 11.4-inch touchscreen multimedia system, 12.3-inch digital instrument cluster, Android Auto, wireless charging pad, Bluetooth connectivity, and DAB+ Digital Radio.

The update also sees wireless connectivity for Apple CarPlay, an Amazon Alexa app, as well as new USB-C ports, as opposed to USB-A ports from the previous model.

The GLB35 is powered by an uprated version of the GLB250’s 2.0-litre turbo-petrol four-cylinder petrol engine, with the AMG-fettled version producing a more substantial 225kW of power from 5800-6100rpm and 400Nm of torque from 3000-4000rpm (up from 165kW/350Nm).

This version is also matched to an eight-speed dual-clutch automatic transmission as well as Mercedes-AMG’s front-biased but fully variable 4Matic all-wheel-drive system.

Thanks to this combination, the GLB35 can sprint from 0-100km/h in just 5.2 seconds with launch control enabled, while its electronically limited top speed is 250km/h.

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.

The GLB35’s fuel consumption on the combined-cycle test (ADR 81/02) is 8.3L per 100km, while its carbon dioxide emissions are 186 grams per km. All things considered, both claims are pretty decent.

In our real-world testing, though, we averaged a high 14.1L/100km over 75km of driving split between highways and country roads, so not your typical mix, then. A heavy right foot also played into that result, so expect a better return after a regular run.

For reference, the GLB35’s 60L fuel tank can be filled up with 98RON petrol at minimum.

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.

Don’t let the GLB35’s family friendliness fool you, this is an SUV that can get up and go.

The engine’s extra power and torque over the GLB250 are immediately felt behind the wheel, with the GLB35 accelerating with the vigour of an all-wheel-drive hot hatch, which makes sense given their similar claims.

And if you have one of the sportier drive modes engaged, the booming noise generated is also special – even if a lot of it is of the artificial variety, pumped into the cabin to make occupants feel like things are getting serious.

What is genuine, though, is the well-rounded transmission, which is characteristically quick with its upshifts. At the same time, it’s also relatively smooth, even at low speed, which has proven to be a challenge for dual-clutch units over time, but not here.

To earn the AMG badge, the GLB35 goes even further with other mechanical upgrades, including sports tunes for the suspension and steering.

Specifically, the GLB35’s independent suspension set-up not only consists of MacPherson-strut front and trailing-link rear axles with adaptive dampers, but also introduces new steering knuckles, transverse control arms on the front axle, and a stiffened subframe.

The resulting ride is actually quite good. Yes, the extra firmness over the GLB250 is noticeable – particularly in the sportier drive modes that stiffen the adaptive dampers all the way – but it’s by no means a deal-breaker.

That said, it’s worth noting our test vehicle was fitted with the optional 21-inch alloy wheels ($1990), so the GLB35’s like to ride even better on its standard package.

This is remarkable considering the handling improvements made, with the GLB35 managing body roll and pitch better than the GLB250 when pushing hard into and around corners, coming out of which grip is plentiful thanks to the all-wheel-drive system.

Thankfully, the standard-fit high-performance braking package consisting of 350mm front and 330mm rear discs with four- and one-piston callipers respectively helped it wash speed away with ease when attacking the twisty stuff with intent, even with 1857kg (kerb) to deal with.

Also on hand is electric power steering, which is speed-sensitive and has a variable ratio in the GLB35. Basically, it’s quicker when you want it to be, remaining on the lighter side in hand until you engage one of the sportier drive modes and weight is increased markedly.

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.

The Discovery Sport plug-in hybrid variant is not covered by its siblings' five-star ANCAP safety rating from 2022, so the P300e is unrated but features some good safety gear.

Standard items include AEB, blind spot monitoring, driver attention alert, tyre pressure monitoring, rear collision warning, forward collision warning, rear cross-traffic alert, lane keeping aid, traffic sign recognition, intelligent seatbelt warning, and adaptive cruise control.

The traffic sign recognition tech is dreadfully intrusive, which impacts the driving enjoyment. I turn the warning sound alerts off each time I hop in as it's like a small child is hitting the same piano key over and over again - just to give you a sense of the sound itself and resulting annoyance.

It has seven airbags but interestingly, and unusually, the seventh one is a pedestrian airbag.

This model misses out on lane departure warning but for any families, there are ISOFIX mounts on the rear outboard seats plus three top tethers and you should be able to get three seats back if they’re not too big.

As with all Mercedes-AMG models, the GLB35 comes with a five-year/unlimited-kilometre warranty, which currently sets the standard for the premium market. It also comes with five years of roadside assistance.

The GLB35’s service intervals are long, at every 12 months or 25,000km (whichever comes first). Better yet, it’s available with a three-year/75,000km capped-price servicing plan, but it costs $2750, with the third visit alone incurring a $1300 charge.

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.