Mercedes-AMG GLC43 vs Lexus RX

What's the difference?

The Mercedes-AMG GLC43 has your back if you’re looking for a thrilling performance SUV that moonlights as the daily family driver. It boasts a fairly practical cabin with good storage. Is it too expensive? Yep. Would I have one? Absolutely. It’s fun and full of features.

This rocked my kid's world – the lighting, the cool superhero vibes of the styling … the ‘tatatata’ chirps of the engine. It won him over completely.

The new Lexus RX450h+ Sports Luxury is packed with a wealth of premium features and strikes a solid balance between refinement and practicality. There are enough thoughtful touches that make everyday driving a little easier.

You’ll get the most out of the plug-in hybrid powertrain if you’re able to charge it regularly; ideally every day. That might not always be practical for busy people on the go, but overall, the RX450h+ manages to blend efficiency with Lexus’ signature comfort and quality.

The GLC43 looks distinctly more aggressive than its GLC300 sibling.

The grille features vertical struts instead of the star motif and there’s a sporty spoiler lip at the rear that complements the quad exhausts.

The large headlights featuring Mercedes Digital Light LEDs dance when you first put them on and add a sporty dynamic to the styling, as does the 20-inch alloy wheels.

The interior is largely the same with a dashboard that is headlined by an 11.9-inch touchscreen multimedia system and a 12.3-inch digital instrument cluster.

The ambient lighting system transforms the space at night time and honestly, makes it look pretty flash compared to some of its rivals. I also love the big panoramic sunroof and cute circular air-vents found in the front – they add some interest to the cabin.

The optioned performance seats of our test model make this look the part of a performance SUV and there is AMG badging everywhere - just so you don’t forget what you're driving. This looks beautiful inside and out and it earns its luxury tag.

The RX isn’t breaking new ground with its plug-in hybrid design, but it still delivers that signature Lexus understated refinement.

The strong, flowing body lines, 21-inch alloy wheels and updated 'spindle grille' all give it presence without screaming for attention.

And in a segment where boxy and bulky designs tend to dominate, the RX’s swoopy silhouette helps it stand apart in all the right ways.

Inside, the cabin feels considered and luxurious. There's a heavy use of premium materials, including the leather and suede upholstery, plush soft-touch surfaces and the big, crisp displays that make the space feel modern and high-end.

The panoramic sunroof brings in loads of natural light, too, which is especially welcome given the dark headliner that might otherwise feel a little heavy.

If I have one gripe, it’s the thin steering wheel, which doesn’t quite match the otherwise solid, tactile feel of the rest of the interior. But overall, the cabin is a space that feels luxurious and well-executed. It's quietly confident, just like the RX.

The cabin up front feels like a cockpit because the optioned performance seats absolutely lock you into place.

The adjustments are pretty good for the lumbar and under-thigh supports but the highlight are the kinetic stretching massage functions on both front seats, it really helps to alleviate fatigue on a longer journey. 

While I find the seats comfy, my husband didn’t! He said he needed more ‘space’ between the legs and with the bucket-style, he um … didn’t get that required space. Take from that what you will.

Getting in and out of the backseat is easy enough but the side steps are overkill and can dig into the calves.

The back seats are not super comfortable as they are on the harder side but the headroom and legroom are great for my 168cm height. The back row would still be most comfortable as a four-seater when filled with adults, though.

The individual storage is excellent up front with a decently sized glove box, middle console and a huge storage bin and drink bottle holder in each door.

The centre console features a good-sized cubby that includes a phone shelf and two retractable cupholders.

The storage and amenities in the rear are okay with directional air vents, reading lights and a fold-down armrest with two cup holders. You also get shallow storage bins in each door but this row misses out on charging options, which is a shame.

The other technology looks high-end and the graphics in both the 11.9-inch touchscreen multimedia system and 12.3-inch digital instrument cluster assert that the GLC43 is a luxury vehicle.

Both are easy to use, highly customisable and look fantastic. What a combo!

The augmented reality satellite navigation shows dynamic directions overlaid on a live video feed, so there's no excuse for getting lost while using it. There's also wireless Apple CarPlay and Android Auto, as well as, a Mercedes Me Connect app, so you can access features on your car remotely.

Charging options are only found in the front row but you get a good selection with three USB-C ports and a wireless charging pad.

The GLC43 gets a large coloured head-up display, fingerprint scanner (that can lock a certain profile or features) and dual-zone climate control but it would have been nice to see climate control in the rear row as well.

The boot is pretty large for a medium SUV at 620L, and can comfortably fit shopping or luggage.

There’s a tyre mobility kit and extra underfloor storage, and the rear row has a 40/20/40 split fold, which opens up your storage options. You also get a powered tailgate in this model, which is always handy.

The RX cabin is thoughtfully laid out and impressively practical, with a premium feel that doesn’t come at the cost of everyday usability.

Up front, there’s plenty of space for driver and passenger, yet the stepped dash design brings a sense of intimacy. The electric front seats are seriously comfortable, with four-way lumbar support and extra adjustment functions that make this an easy choice for long drives.

Storage options are generous, too. There’s a clever dual-opening centre console, large glove box, multiple phone-sized shelves, map pockets and a couple of cup- and drink holders in each row.

Charging is taken care of by four USB-C ports, one USB-A port and a wireless charging pad.

Tech is up-to-date and well-integrated. The upgraded 14-inch media display looks crisp, supports wireless Apple CarPlay and Android Auto, and is paired with a revamped 12.3-inch digital instrument cluster and a colour head-up display.

The cluster’s new layout is modern and much easier to read than the previous offering. The digital rear view mirror also earns its keep when the cabin’s packed with passengers or gear.

One of my favourite touches? The seat controls on the side of the front passenger seat. It makes quick work of moving the seat forward, especially helpful when you’ve got a kid clambering in with a school bag full of projects.

Access to the rear row is easy, but the stadium-style seating, where you're perched noticeably higher than those in the front, won’t be for everyone.

That said, the rear seats are plush and padded, though they lack side bolsters, which rear passengers might notice during cornering.

Legroom is generous and the hardened kickplates are a dream to clean when your child’s treating the seatbacks like a climbing wall.

My eight-year old gives the back seat a glowing review, thanks to its creature comforts, including rear climate control, directional air vents, seat heating/ventilation on the outboard seats, two USB-C ports and retractable sun-blinds, which are a crowd favourite in our household.

There are three top-tether anchor points, and the bench is wide enough to fit three child seats, though bulky booster seats might be tricky due to the raised seating height.

At the back, the boot is well set up for families, offering electrically folding rear seats, a 12-volt socket, flat loading floor, and a hands-free powered tailgate.

Under the floor, there’s a small compartment for your charging cables (Lexus throws in two!) and a usable 612L of capacity when all seats are in use. One downside, though, is the lack of a spare tyre as you just get a tyre repair/inflation kit.

There are four variants in the RX range, and we’re testing the 450h+ Sports Luxury AWD, which sits just below the flagship and packs in plenty of premium kit for its $123,500, before on-road costs, price tag.

That makes it slightly more affordable than its main PHEV rivals; the BMW X5 xDrive50e (from $125,885 MSRP) and the Volvo XC90 Ultra (from $124,466 MSRP).

The Volvo does offer seven seats to the Lexus’ five, which may matter for larger families, and both rivals also outdo the RX on electric-only driving range - 65km in the RX compared with 77km in the Volvo XC90 and a generous 101km in the BMW X5.

Still, the RX fights back with a seriously stacked features list. Highlights include a panoramic sunroof, 10-way powered front seats with heating and ventilation, electrically folding rear seats (also heated and ventilated in the outboard positions), and a heated, power-adjustable steering wheel. Sound is taken care of by a premium 21-speaker Mark Levinson surround system.

Technology has had a solid upgrade with the 14-inch touchscreen multimedia display, 12.3-inch digital instrument cluster, digital rearview mirror, colour head-up display, live traffic navigation, wireless Apple CarPlay and Android Auto, 4G connectivity, four USB-C ports, one USB-A port and a fast wireless charging pad.

There’s also access to the 'Lexus Connected Services' app, allowing you to remotely lock or unlock the vehicle, pre-set the cabin temperature via three-zone climate control, configure driver profiles and even use your phone as a digital key.

Practical features include keyless entry and start, rain-sensing wipers, dusk-sensing LED headlights, rear sun-blinds, intelligent seatbelt reminders for the first two rows, a child presence alert and a hands-free powered tailgate. However, due to the plug-in hybrid system there’s no spare tyre, just a tyre repair kit.

The 43 gains the 2.0-litre four-cylinder turbo-petrol engine from the AMG A45 hot hatch, which replaces the 3.0L turbo V6 from the previous model.

What makes this one interesting is that it’s been designed with Formula 1 tech and its performance is boosted by an electric turbocharger. Which means you have instant power delivery.

The new engine produces a power output of 310kW and 500Nm of torque. So, a little more power (23kW) but a little less torque (20Nm) than the previous model. The GLC43 is an AWD and has a nine-speed auto transmission which is mostly smooth.

The new GLC43 features a true AMG engine and that means it was hand-built by a master engine builder. Every AMG engine features a plaque with the builder's signature, which is very cool.

Under the bonnet the RX450h+ Sports Luxury runs a plug-in hybrid powertrain that pairs a 2.5-litre four-cylinder petrol engine with a CVT auto and dual electric motors - one on each axle. Together, they produce a total of 227kW of power, though Lexus doesn’t quote a combined torque figure.

Still, it’s quick off the mark for a large SUV, with a 0-100km/h time of 6.5 seconds. There’s more than enough grunt for daily driving and overtaking, even if it doesn’t quite match the outright power of its key PHEV rivals.

You might be surprised given its outputs, but the new GLC43 is fairly frugal when it comes to consumption.

The official combined fuel-cycle consumption figure is 9.9L/100km and my real-world usage came out at 8.8L.

I have put the GLC43 through its paces too – mountain roads, urban and long trips … and have not been shy using it’s power.

That's excellent usage for such a powerful SUV but expect higher in an urban setting.

Based on the official combined fuel cycle and 62L fuel tank, expect a theoretical driving range of 626km.

Mercedes recommends a minimum 98-octane unleaded petrol to be used.

The plug-in hybrid system brings solid efficiency, with claimed fuel use of just 1.3L/100km. In real-world conditions (mostly urban driving with regular recharging) I managed a respectable 4.8L/100km, which makes a strong case for the hybrid set-up.

The fuel tank holds 55 litres and it's worth noting Lexus recommends using a minimum of 95 RON unleaded petrol to fill it.

Using our real-world economy figure you can expect a range in excess of 1100km between fills.

The RX450h+ is fitted with a relatively small 18.1kWh lithium-ion battery, supporting an NEDC electric-only range of up to 65km.

While that’s fine for short daily trips, it’s shorter than you'd ideally want in a family SUV of this size and it lags behind rivals like the BMW X5 and Volvo XC90 in this department.

Charging is simple enough. The RX uses a Type 2 charging port and accepts up to 7.0kW on AC power, which means a full charge takes around 7.5 hours, perfect for overnight top-ups. Lexus also includes an at-home charging cable and second adapter cable as standard, which is a thoughtful touch.

After driving the GLC43, it proves why its considered a performance SUV – the new engine and that Formula One tech creates a fun on-road experience. 

Power delivery is quick and stable – you never feel overwhelmed by what the car is doing but you do get excited.

It has a dedicated 'Track Pace' feature for when you take it to a race track. I mean … is that needed for a family car? Probably not but it’s cool nonetheless.

This new model sees a redesigned adaptive suspension and rear axle steering. The suspension is firm and it hits the road with a definitive thump. I like the feedback when I’m pushing it around bends but for the daily school run, it’s a pretty hard ride.

The rear axle steering is fantastic when you hit big mountain hair-pin turns or need to manoeuvre precisely in your lane. It’s extremely agile on the road, when it needs to be. 

It’s a bummer that the cabin is loud with road noise and while you can do long journeys, just know it’s not a comfort tourer. You drive this for the fun factor.

All of the pillars are quite wide, which I found impeded my vision on bends but on the straights it was fine. I just did more of a weave and bob to check all of the blind spots this week.

Because of the electric turbocharger, power stays high but revs low at lower speeds. This can make parking can feel a little bunny-hoppy at times until you get used to how to accelerate at low speeds. Once you do, it’s a breeze to park and the 360-degree camera is top-notch.

The RX450h+ delivers power that’s pert and prompt, with genuine bursts of acceleration that make driving fun. It’s always ready to go and there's no lag in stop-start traffic - which gives it a lively, dynamic feel around town.

The transition between petrol and electric power is seamless; you hardly notice the switch, which makes for a smooth, refined driving experience. The cabin is impressively quiet, even on the highway, making long trips comfortable and peaceful.

Regenerative braking isn’t adjustable and is subtle enough that many won’t notice it which is likely a plus for fans of traditional internal combustion engines who are making the PHEV leap.

The adaptive variable suspension adds a sporty edge to handling, letting you confidently take corners at speed. There’s some body roll but the RX never feels top-heavy or unsettled.

The steering carries the weight of the SUV but remains well-balanced and responsive. Overall, it’s a well-tuned machine that’s a pleasure to drive.

Maneuverability is a strong suit, too, thanks to a tight 11.8-metre turning circle and a clear, easy-to-use 360-degree camera system. Parking is easy-as-pie, which a lot of drivers will appreciate.

The RX earned a maximum five-star ANCAP safety rating in 2022, scoring highly across all protection categories: 90 per cent for adult protection, 89 per cent for child protection, 89 per cent for vulnerable road users, and 93 per cent for safety assist systems.

Standard safety gear includes eight airbags (dual front, front side, curtains, front centre, and driver’s knee) plus a comprehensive suite of driver aids. Standout features include emergency call functionality, child detection alert, side exit assist, front and rear collision warnings, park assist and emergency steering assist.

Additional tech covers blind-spot monitoring, driver attention monitoring, tyre pressure monitoring, daytime running lights, LED cornering lights, rear cross-traffic alert, lane departure alert, lane keeping assist, traffic sign recognition, and intelligent seatbelt warnings for the front two rows.

Visibility and parking are enhanced by a 360-degree camera system and front/rear parking sensors, while adaptive cruise control adds comfort on longer drives.

The rear seats have two ISOFIX mounts plus three top tether anchors, accommodating child seats safely. Autonomous emergency braking is active from 5.0 to 80km/h for pedestrians, cyclists, and backover and up to 180 km/h for cars.

The GLC comes with a five-year/unlimited kilometre warranty, which is a normal term for the class.

You can pre-purchase either a three-, four- or five-year servicing plan, priced at $4420 for three years, $5520 for four and $6245 for five years. 

Services on the five-year plan cost an average of $1249 per service which is very expensive for the class.

Servicing intervals are reasonable at every 12 months or an extra-long 25,000km, whichever occurs first.

The RX comes with a five-year, unlimited-kilometre warranty, which matches its key rivals but isn’t exactly class-leading by today’s standards.

Servicing is handled via a capped-price program, with each service costing $695. The intervals are well spaced at every 12 months or 15,000km, whichever comes first.

This Sports Luxury grade also includes a three-year complimentary 'Lexus Encore' membership, granting access to a handy phone app and member benefits at partners like Westfield and Ampol. On top of that, you get 24/7 roadside assistance for added peace of mind.