BMW X7 vs Lexus Gx550

What's the difference?

When lined up against its direct rivals, the expensive X7 xDrive40d represents reasonable value for money.

It has a unique and bold look and a sumptuous, visually striking and well-appointed interior that has acres of space for family, friends, or for ferrying frequent flyers to the airport. 

That wallop of performance from the big beefy diesel is the cherry on the top. This is how you do a mid-life update. 

The new Lexus GX 550 Sports Luxury looks fantastic and has enough mod cons to satisfy a family but it’s not as luxurious as you’d expect from a premium brand and the fuel economy and driving range will turn off some. But if you’re still interested, there’s a lot here that will make you happy and it’s one of the smoothest 4WDs I’ve driven.

There’s quite a bit that’s interesting about the X7’s design. Especially looking at it front on.

BMW certainly took a bold step when it introduced its toothy grille design for the X7 and the 4 Series range. 

But the Bavarian brand has made some even braver design moves recently by introducing a blocky front-end with split headlights on its new-gen 7 Series flagship sedan. That look has now found its way onto the face of the updated X7.

As with the 7 Series, it won’t be to everyone’s taste. But you can’t deny it has a lot of presence. 

The tail-lights have been tweaked and look good, but the sheer size of the X7 - it’s 5.2 metres long and 1.8 metres tall - means there’s no disguising the fact that it is a big, boxy SUV.

Inside the update ushers in significant design changes. The old dash and cowl is gone in favour of the ‘Curved Display’ that connects the instrument cluster and multimedia. 

New slimline air vents, LED backlit ‘X7’ graphics on the passenger side of the dash, and a new gear shift toggle that replaces the old shifter elevate the cabin and give it a much more modern vibe than the old X7 - one that’s in keeping with the excellent iX electric SUV.

The new GX 550 looks massive and while it shares the same platform as the Toyota LandCruiser 300 series, it doesn't share all of its bulk. They both stand at 1980mm wide but differ on length (5015mm vs 4980mm) and height (1670mm vs 1950mm), respectively.

The new design is fabulously rugged but each body panel looks meticulously crafted and is just the right size. This just means the proportions look right and your eye sort of glides over the big body rather than stopping on any one feature.

But having said that, there are a lot of nice features to focus on, like the long LED headlights and rear strip light, auto-folding side steps, 22-inch alloy wheels and sharply styled rectangular side mirrors.

The tailgate window can also be opened if you need to pop something into the boot but don't want, or have the space, to open the tailgate itself.

The styling takes a minor nose dive once you hit the cabin, though, because it doesn't look as sumptuous as you'd expect in a premium SUV.

I love the utilitarian and military vibe of the vertical dashboard, chunky air vents and relatively small windscreen. It looks great but some trims are plasticky and the touchpoints, while soft, are not Lexus-plush.

However, the technology looks gorgeous with an integrated 14-inch multimedia display and a 12.3-inch digital instrument cluster. The fixed sunroof with its two settings (clear or opaque) is also a lovely feature.

But on a whole, the GX 550's European rivals outclass it with their flashier cabins.

Regardless of the price point, a three-row SUV needs to be super practical and capable of family duties. 

And if you want a BMW X5 but need a lot more space, this is the next logical step.

Let’s start in the front row. As mentioned, the new X7 gains the screen and tech set-up from other new BMW models like the iX and updated 3 Series. The Curved Display combines a 12.3-inch digital instrument cluster with digital speedo and a 14.9-inch multimedia screen.

You can customise the cluster layout and move things around on the multimedia screen, too. The latter is a touchscreen but you can also find what you need via the 'iDrive' controller in the console.

I have had some experience with this system in the iX and while it’s not without its flaws, it is a top notch system. There’s a lot to wrap your head around, but the use of app icons helps. And you can swipe through to your chosen screen.

It took far too long to work out how to find the trip computer, something that should be much easier to access, as well as a couple of other functions. And the climate controls are housed in the digital screen. I would always prefer a separate space with buttons for air-con.  

But the graphics and displays - including the excellent head-up display - are excellent. 

Other tech you get with the X7 includes the BMW’s 'Digital Key', which is an app that allows iPhone users to lock and unlock their car remotely, and BMW ID driver profile.

If you buy this car, just allow yourself some time to familiarise yourself with all that tech.

Elsewhere up front there’s a lovely new three-spoke steering wheel, and cute touches like the metal air vent toggles, black and metal touches and the choice of inserts.

The front seats are luxurious and comfortable and offer loads of side and thigh support. They have memory functions, too. There’s no shortage of headroom up front, either.

Storage-wise, the door will fit the largest of bottles, as well as other items thanks to generous door bins, while the central lidded box is also sizeable. 

What about that second row?

The X7 xDrive40d usually comes standard with seven seats, but our test car was fitted with the $1500 captain’s chair option which drops seating capacity down to six people.

If you need the extra seating this is not the option for you, but it is great for families with bigger kids, and it would make for an excellent airport transfer car. 

The seats are unbelievably comfortable and can be adjusted to suit your preference. They also have ISOFIX points and armrests. 

Rear seat occupants have access to their own climate controls, air vents, USB ports, cupholders and ample door storage.

There is a massive amount of occupant space as well - stretch those legs out and enjoy it!

One of the X7’s selling points is that it is a genuine three-row SUV. That third row is not just for occasional use for very small children, like so many seven-seat SUVs. That row can be used every day. 

Even with my six foot stature, I could easily climb in and out of the third row. That’s made even easier thanks to the mechanical seat functions.

Just hit the lever at the top of the second row seat and the motor moves the seat forward and up to ensure there’s a big enough aperture to get in and out of the rear seats. 

You can also raise and lower the third row electronically via buttons on the boot wall - and they stow flush into the boot floor. Neat!

Once in the third row, there’s air vents, USB ports, bottle holders and storage and quite comfortable seats with more than enough leg and head room.

There’s even a third row section of the sunroof, operated from the second row. Lots of clever touches that people who use the third row will appreciate.

The boot has a few cool features, too, including a split tailgate.

You can even sit on the lower section - it can handle a load of up to 250kg - a perfect place to sit and watch the polo.

You can lower the suspension to aid loading larger items, and the X7 comes with a space-saver spare wheel.

Capacity is 300 litres with all seats in place, and I easily fit a pair of smaller suitcases in with that configuration. It increases to 2120L with the two rear rows folded. 

The cabin of the new GX 550 is fairly practical with plenty of head- and legroom in each row (yep, even the third!). When you first hop in, it can feel a big snug on elbow-room but this feeling quickly dissipates.

Despite a 215mm ground clearance, access is pretty good for the front and middle rows due to the wide door apertures and side-steps. Third row access is a bit awkward for an adult but my eight-year old loved scampering back there this week.

The electric front seats are comfortable with their extra functions and I like the way the massage feature extends to the seat cushion as it limits fatigue on longer journeys. However, you sit on top of them rather sink into them which makes it feel a little trucky at times.

The wide middle row has a bench seat that will be comfortable for kids but an adult might get a sore behind on a long trip. The transmission tunnel also compromises foot room for adults but the seat is wide enough to make use of all three top-tether anchor points (there are ISOFIX mounts too).

It was a little bit of an effort to lift my big booster seat into the back because the GX 550 sits so tall but otherwise, there's plenty of room around a child seat for them not to feel like a sardine.

Individual storage is made up of a glove box that fits an owner's manual, a small shelf in the dashboard and a middle console that doubles as a cool box (mini fridge) and can fit up to four cans or bottles in it.

Each row gets four drinkholders and two USB-C ports but the front also enjoys a 12-volt socket and wireless charging pad. There's a 220V domestic plug port in the boot for larger appliances, too.

It's sometimes awkward to use the wireless charging pad because it's easy for your phone to slide around on it and it quite often disengaged from charging.

My son enjoyed all of the other amenities in the middle row, like the reading lights, climate control, two USB-C ports and retractable sunblinds and I applaud carmakers when they position rear directional air vents in the pillars and/or roof. It just makes it so much easier to cool down sweaty kids!

The 14-inch multimedia display has clear graphics and a responsive touchscreen. The layout is easy enough to get used to after spending some time with it and the sat nav is simple to use.

I like that the sat nav directions can be pulled into the 12.3-inch digital instrument cluster and head-up display.

There is a Lexus connected services app, which you get a three-year subscription to. It's easy to connect to the wireless Apple CarPlay and there is also wireless Android Auto.

The system also has Bluetooth and digital radio, which is a delight to use through the 21-speaker Mark Levinson sound system.

The cabin is rounded out by the well-shaped boot which has a massive 1063L of capacity when the third-row is folded. That's been more than enough for my family's needs this week and my German Shepherd was pretty comfy back there, too. The powered tailgate has a kick-function and there is a full-size spare wheel underneath the car.

The Lexus GX 550 shares the same platform as the recently introduced Toyota Prado but both models are now based on the same 'body-on-frame' platform shared by the beastie Toyota LandCruiser 300 Series. So it's bigger and features a more rigid chassis than before.

Surprisingly, that hasn't translated to a massive price tag for the GX 550 and you can pick up the flagship grade on test for this review for $128,200, MSRP.

Which sounds inexpensive when you compare it to the BMW X7 xDrive 40i M Sport which is priced from $171,300 MSRP but the Land Rover Defender 110 P400 X-Dynamic HSE is a lot closer at $128,815 MSRP.

The only issue here is that shared platform, because while they don't share the same powertrain, the flagship Toyota Prado Kakadu ($99,990 MSRP) is still almost $30K more affordable and boasts a similar equipment list. So, ask yourself, is it the brand and engine you're after or the new good looks?

The standard equipment is well-rounded with a 14-inch touchscreen media display with satellite navigation and wireless Apple CarPlay and Android Auto.

A fully digital 12.3-inch instrument cluster, colour head-up display, three-zone climate control and a 21-speaker Mark Levinson sound system round out multimedia requirements.

Other technology includes a digital rear view mirror, two USB-C ports in each row, a 12-volt socket, a 220-volt domestic outlet and a wireless charging pad.

There are two particularly handy features for families, the 'cool box' (basically a mini fridge) middle console and rear retractable sun-blinds.

The fixed panoramic sunroof features two settings allowing you to make it clear or opaque. The electric front seats feature heat, ventilation and massage functions and the rear outboard seats are heated as well. The third row electrically adjusts and there are multiple buttons throughout the car to access this feature.

Upgraded leather-accented upholstery is standard in the flagship grade and is available in three combinations. The Sports Luxury also features 22-inch alloy wheels, a full-size spare wheel and a powered tailgate with kick-function.

The X7 xDrive40d is powered by a 3.0-litre, in-line six-cylinder turbo-diesel engine, that gets a boost in power - it pumps out 259kW of power and 720Nm of torque - 64kW/100Nm more than the 30d.

It now also comes with 48-volt mild hybrid tech, which uses an electric motor integrated in the eight-speed automatic transmission.

It drives all four wheels via BMW’s 'xDrive' all-wheel drive system and it is fitted with air suspension for a cushy ride. Towing capacity is rated at 3.5 tonnes braked or 750kg unbraked.

If you are keen on off-roading in the X7, it has a 221mm ground clearance, and a fording depth of 500mm, but maybe best to keep it on the tarmac.

All GX 550 grades share the same 3.5L V6 twin turbo-petrol engine which produces up to 260kW of power and 650Nm of torque.

This 4WD has high- and low-gearing, as well as a bunch of driving modes to suit most occasions, like 'Eco', 'Comfort', 'Sport' and 'Sport+'.

The 10-speed automatic transmission shifts through its gears smoothly and it always feels like it's engaged in the right gear. Which isn't always the case for a big SUV!

The Sports Luxury is fitted with a towing hitch and cover but unlike the base Sports grade which has a 3.5-tonne braked towing capacity, this model only has a 3130kg capacity which might not appeal to families with big toys to tow. 

According to BMW, the official combined cycle fuel figure for the X7 40d is 8.0 litres per 100 kilometres.

Our fuel figure after nearly a week of mixed city, freeway and country driving was 9.0L/100km, which isn’t too far off the mark.

It has an 80 litre fuel tank and an approximate driving range of 1000km.

I didn’t have high hopes for fuel economy because the official combined (urban/extra-urban cycle figure is a hefty 12.3L/100km but after mostly open-road driving, with some urban stuff mixed in, my real-world average came in at 11.8L.100km! This figure is based on my actual km travelled (358km) and litres of fuel used (42.41L).

While I’m surprised by the fuel usage result, I wouldn’t say this car has good fuel economy compared to its diesel-powered counterparts but it’s not terrible!

The GX 550 has a relatively small fuel tank compared to its Toyota cousins at 80L and based on the combined fuel cycle, you’ll get a theoretical driving range of up to 650km.

Not all that great. Not for a big family mover and not if you’re typically driving in the city, where fuel usage will be a lot higher.

The GX 550 only accepts premium unleaded petrol (95 RON), too.

With a big plush SUV like this, you’d expect a comfortable ride. And for the most part, the X7 delivers that, while offering more than a bit of grunt, as well.

The X7’s height ensures a high driving position, and there’s plenty of glass for decent visibility. 

Propelling a 2.5-tonne SUV could be a struggle for a lesser engine, but the meaty diesel offers ample torque and the mild hybrid set-up helps to reduce initial turbo lag significantly - that means it is responsive from a standing start.

I wouldn't have thought a vehicle of this size and shape was capable of a 5.9-second 0-100km/h time, but here we are.

As a result of all that torque and power, overtaking is a breeze - providing there is enough room on the other side of the road for both cars to fit.

That size and heft have an impact on cornering and dynamics. You simply can’t carve through tight corners in this car, but with that said, it’s more entertaining than you’d think. 

Steering feel is weighted on the heavier side and it’s as sharp as it needs to be in a car like this. It would be weird if the steering was too pointy. 

Ride quality is top notch - as it should be - and while the massive optional 23-inch wheels and low profile tyres mean you’ll notice potholes and the like, it largely soaks up imperfections with ease.

That level of refinement extends to the hushed ride, too. The cabin is a quiet and serene place to spend time - but not quite to the same degree as a 7 Series. 

Parking in tight spots is a challenge, and manoeuvring in narrow streets could take a while, too. But you could tell that just by looking at the X7.

Oh my goodness the Sports Luxury is a masterclass on 4WD refinement! You never feel the bulk or weight of this massive SUV when you’re driving it. The power delivery is effortless and there’s lots of grunt available when you hit hills.

The handling is also very good with responsive steering and enough road feedback as a driver to make you feel comfortable with what the car is doing. There is some roll in corners but it can tackle more corners at speed than I thought it would. 

The high driving position makes me feel like I can see a long way ahead yet while visibility is mostly good, it can be compromised when you have the side window shades and the third row headrests up. Which is why I love the digital rear view mirror.

Overall, ride comfort is good with forgiving suspension and low cabin noise, even at higher speeds. It’s pretty easy to chat with all rows and there’s not a lot of engine noise which adds to the refinement. I do like hearing a V6 rumble but that’s just a personal preference. 

I was a little worried about hitting my local Westfield car park but this is a nimble SUV to manoeuvre and parking it is a breeze with the 360-degree camera system and parking sensors. 

The new GX 550 hasn’t been tested by ANCAP and is unrated but its cousin, the Toyota Prado, which shares the same platform just achieved a maximum five-star rating from assessment in 2024. It's fair to expect a good result for this model.

Overall, the Sports Luxury has a long list of standard safety equipment and features nine airbags which is good for a family SUV. 

Safety equipment includes adaptive cruise control, lane departure alert, lane keeping aid, traffic sign recognition, emergency steering assist, driver monitoring, safe exit assist, emergency call functionality, blind-spot monitoring, rear cross-traffic alert and tyre pressure monitoring.

The GX 550 has autonomous emergency braking (AEB) with pedestrian, cyclist, motorcyclist and junction turning assist.

After copping a bit of flack from motoring media and buyers, BMW finally increased its warranty terms last year from three years to an industry standard five-year, unlimited kilometre warranty on its vehicles, including the X7.

Rather than a set servicing schedule, BMW offers condition-based servicing which is when the vehicle’s computer alerts the owner that it requires a service. 

BMW doesn’t offer capped-price servicing, but does have a pre-paid 'Service Inclusive Package' with terms ranging from three years/40,000km to five years/80,000km and beyond. 

A five-year basic package for the X7 costs $2800, which is not too bad considering the positioning of this model.

Lexus offers the GX 550 with a five-year/unlimited km warranty, which is fairly standard compared to its Euro rivals.

You get five years capped-priced servicing which costs $5950 but the servicing schedule is a bit of a bear at every six months or 10,000km, whichever occurs first.