Lexus RX vs Audi SQ7

What's the difference?

So, is the latest Lexus RX good enough to stay, or should it sashay away?

In almost every single way except accessibility (the cheapest is now $15K more expensive, remember), the newcomer is hugely better than the model it replaces, with a level of sophistication and refinement – as well as comfort – that the underwhelming predecessors just could not manage.

And, yes, while there is tech shared with the Toyota Kluger (as there's always been), RX #5 looks, feels and drives much more like a large luxury SUV should.

Speaking of which, few rivals can match the family-friendly RX's combination of customer service, glamour and opulence.

Our verdict then? This Lexus has gone from being a drag to one of the queens of the BMW X5 class. RX... Shantay, you stay!

The Audi SQ7 TFSI is a delight to drive. You can’t fault its handling or power and drivers who want that sort of performance will not be disappointed. However, for the price point I was hoping for sweeter ongoing ownership costs and terms. It's missing a few family-orientated amenities, particularly in the middle row, but it’s big enough to accommodate a large family and all of its gear. So, I give this an 8.0/10.

My son thought the red paintwork and engine were pretty cool and he also gives it an 8.0/10. 

They used to say that the revolution will not be televised.

At first glance, the same also applies with this fifth-gen RX, since all the big changes are largely out of view.

Precisely how different it looks depends on which angle you're looking at it from.

Observing nose-on, the RX's front tracks and body are wider and it boasts a new Spindle Body grille design which is meant to have a 3D effect, but is quite fussy to some eyes. And this is meant to carry on through to all future Lexuses, by the way.

Yet, in profile, the newcomer is hard to distinguish from the old one, with its returning floating roof C-pillar motif, which looks quite sleek. Yet the wheelbase has been stretched, which results in 60mm more interior space, and that benefits overall proportions as well as occupants.

Some reckon the strip tail-light design and clean surfacing make the rear the RX's most arresting angle.

Note that Lexus has dropped the old RXL seven-seater model – it didn't sell very well. A replacement is coming but it won't be anything like the new RX. Stay tuned to CarsGuide for more on that in the not-too-distant future!

The SQ7 has always had a certain understated glamour about it. It’s usual to see these cars in the monochromatic hues that European manufacturers seem to favour, so it can slip under the radar a little.

Not our example, in its Matador Red, a colour which accentuates the red calipers behind the 22-inch alloy wheels and makes the LED headlights pop.

The nose is pronounced with only a small ‘SQ7’ badge hinting at what’s beneath the long bonnet.

There’s quite a bit you can customise and one of the options is sporty black accents across the bodywork, as per our test car.

The interior hosts a plethora of soft touchpoints, leather trims and shiny black piano finishes to create a premium finish.

The panoramic sunroof and dark grey headliner (which is apart of that Sensory Package) further enhances the sense of luxury.

The sports seats are finished in a Valcona leather trim that’s diamond quilted but the headrests are fixed, which might not thrill taller occupants.

Overall, the SQ7 is a large SUV being 5067mm long, 1970mm wide and 1743mm high.

Those dimensions almost challenge the Kia Carnival, which is a people mover! Make sure it will fit in your garage before buying it. 

At nearly 4.9 metres, the RX is deceptively long, and that pays dividends inside, while a larger and roomier cabin are the main beneficiaries of that stretched wheelbase.

Step inside, and you're greeted by a modern, attractive and functional dashboard that looks and feels upmarket – even in the least expensive version. This isn't always the case with luxury SUVs. You're not aware of corners being cut or cheap materials. It all seems really well crafted.

Sumptuous front seats provide loads of squishy, cushy comfort as well as adjustability to help find the right driving position for you. Taller people can now sit lower down if they like, meaning it's less cramped for them now. In fact, most occupants will find the RX pretty spacious up front.

Lexus has also worked hard to right other previous wrongs as well.

While not especially pretty or distinctive, the instruments are clear and informative, providing a wide array of driving, vehicle and multimedia data as required. That old intimidating tech-overkill presentation has been binned. Mercifully.

For example, the central touchscreen now features shortcuts for the most often-used items, so you're not forever diving into menus and sub-menus for climate control, navigation, audio, vehicle settings or phone access. And there's now a 'Hey, Lexus' voice control function to further aid useability.

Other plus points up front in the latest RX include an excellent audio system, extremely effective yet unobtrusive ventilation, and loads of storage – whether in the decently sized glovebox, beneath the vast centre armrest or within the deep door pockets.

And while they might need a moment to get used to, the e-latch electric door handles soon become second-nature to operate. And they provide a potentially life-saving extra bonus.

Speaking of which, there's even more surprise and delight to help you connect with the RX emotionally. It isn't all about wearing sensible shoes in here.

For instance, the big 14.0-inch touchscreen looks and feels contemporary yet is wonderfully user-friendly. It actually invites you to play around with it. The dashboard's horizontal themes create a sense of width and space that's... freeing. There are far fewer buttons than before, down from 81 to 50, though they're also still around for vital functions like audio volume control. And on some grades, the varying ambient lighting choices include exhilarating, relaxing and arousing.

But while this interior is a huge step forward and one of the most appealing aspects of this latest RX, there are some misfires remaining.

Chief among them is the infuriating cruise control buttons with their new-fangled 'capacitive touch' tech, which is fiddly to use and alarmingly distracting. This is a throwback to the infernal mousepad controller found in older models.

The same applies to the camera-based rear-vision mirror found on higher grades, which can induce nausea at a single glance. Did Lexus actually test this on humans beforehand?

Moving to the rear seat, it's clear the company did put the family first, with that stretched wheelbase and extra legroom it liberates. Your 178cm tester found ample headroom, legroom and kneeroom sat behind a front seat set up for them. Meanwhile, the cushion is well padded and the (reclinable) backrest comfy.

Amenities include face-level air vents, climate controls, USB ports, a centre folding armrest with cupholders and storage, overhead lighting and grab handles, deep door pockets and a decent view out.

Overall, that premium feeling up front continues out back too.

And great news for family car buyers – the latest RX's has a larger boot, it now measures in at 612 litres (and expands to 1678L with the rear seats folded down), and comes with a long, flat floor with some storage underneath.

Note, though, that only the F Sport has a temporary spare wheel – the rest make do with a tyre repair kit.

It’s missing a few little family items found on other large SUVs but it’s still a fairly practical family car. The cabin is spacious but passenger comfort has been prioritised over storage options.

Front and middle row occupants enjoy most of the room but third rowers will be comfortable on short journeys.

I would be saving these seats for the kids on longer trips, unless you want to get dagger eyes from any adult passengers stuck back there as the amenities aren’t as extensive as you might like with only two cupholders, a reading light and air vents (which aren’t directional).

With the Sensory Package included, the inside is an example of luxury with its heated and ventilated front seats, as well as the heated outboard seats in the middle row.

I love the massage function up front and that it’s customisable for intensity and position. The heated steering wheel is also a nice feature on the chilly days we’ve been having lately.

The tech is quite good with dual 12.3-inch touchscreens stacked on the dash and centre console.

They have haptic feedback, which means they vibrate when you touch them, but curiously this feature disappears while you’re using the wireless Apple CarPlay.

It did take a little while to get used to the Audi system and the haptic feedback, but once you do it’s easy to handle. There’s Bluetooth, digital radio, wired Android Auto and built-in satellite navigation, too.

The head-up display is super clear and displays the sat nav guidance and speed. What I really love is the four-zone climate control – meaning the middle row can get some further adjustments for ultimate comfort.

Charging options are okay with the front enjoying a wireless charging pad, two USB-C ports and a 12-volt socket. Middle row passengers also get a couple of USB-C ports but third rowers miss out.

I was surprised by the lack of storage throughout and this leads me to think this would suit older families best. For example, the middle console is large enough to only fit a phone. Still, each row gets two cupholders and a drink bottle holder in each door.

The boot is an acceptable size with all seats in use at 295L but with the third row stored, it jumps up to a more respectable 770L. There are stacks of different storage accessories available to purchase, if you need extra space.

The third row is a 50/50 split and the middle row has a very practical 35/30/35 split, which opens up the storage options.

The level load space is handy for the grocery run. But there’s no underfloor storage, and you don’t get a spare tyre, just a puncture repair kit.

A powered tailgate is handy, although this one's a bit faster than others I’ve sampled.

The SQ7 is a performance SUV and that means you’re paying for some heavy-hitting engine specs. As such, expect to pay $166,400 before any on-road costs or optional extras.

That puts it just under the cheapest of its competitors, so it doesn’t feel outrageous for what you get.

Our model has been finished in 'Matador Red' and I was pleased to see paintwork options are included in the base price (as they should be).

Our model does have the 'Sensory Package', which adds $13,300 to the price tag but that bundle includes some cool features like an extended leather dashboard, a synthetic suede headliner, an 'Advanced 3D' 23-speaker Bang & Olufsen sound system, an air quality system (with built-in perfume!), a front seat massage and ventilation function and heated rear outboard seats.

Even without the package, it’s still fairly well-specified with its diamond-quilted 'Valcona' leather trim, HD Matrix LED lighting, customisable ambient lighting, as well as wireless Apple CarPlay and Android Auto to name just a few.

As per the Toyota RAV4 hybrid, the RX350h uses a 2487cc 2.5-litre four-cylinder petrol engine producing 140kW of power at 5200rpm and 239Nm of torque from 4300-4500rpm.

Combined with a 134kW/270Nm synchronous permanent magnet electric motor and nickel-metal hydride battery, it drives the front wheels via a continuously variable transmission (CVT). Maximum system power is 184kW.

The sprightlier E-Four option adds a second electric motor on the back axle to provide AWD. It betters the 2WD's zero to 100km/h sprint time of 8.1 seconds by 0.2s.

Next up is the RX350, which swaps out the hybrid tech for a 2393cc 2.4-litre turbo unit, pumping out 205kW at 6000rpm and 430Nm from a low 1700-3600rpm, while driving all four wheels via an eight-speed torque-converter auto. Its 0-100km/h time is 7.6s.

Finally, there's the RX500h hybrid, combining the 350's 2.4L turbo (producing 202kW at 6000rpm and 460Nm from 4300-4500rpm) with two electric motors (one on each axle) and a unique six-speed auto, for a combined 273kW. It's rapid too, reaching 100 in just 6.2s.

Oh, by the end of 2023, the RX450h+ plug-in hybrid electric vehicle (PHEV) will also be part of the line-up.

On all models, suspension is the tried-and-tested MacPherson-style struts up front and a multi-link rear arrangement. The RX's platform is new, sharing the TNGA Toyota New Global Architecture with the Camry, RAV4, smaller NX and – you've guessed it – the latest Kluger.

The new TFSI engine in the SQ7 is monstrous. It’s a 4.0-litre twin-turbo petrol V8 with maximum outputs of 373kW/770Nm.

To say it’s powerful is an understatement. This would be at home on the autobahn and my son cheered whenever I had to get up to speed.

It, of course, replaces the SQ7’s iconic diesel V8. The old TDI unit had 53kW less power but 130Nm more torque. However, the new engine delivers on power with aplomb.

The eight-speed auto transmission glides effortlessly through its changes and the all-wheel drive drivetrain is responsive.

No shocks here.

The RX350 turbo slurped 11.0L/100km over our launch drive route, which took in both peak-hour traffic jams and rural highway runs, compared to 9.6L for the 500h hybrid turbo and just 6.4L for the 350h hybrid.

So, how do these compare to the official figures?

Well, quoting the pretty-lax NEDC numbers, the 350 should average 8.7L, the 500h a frankly surprising 6.5L while the 350h shines at just 5.0L in the 2WD and 5.4L for the AWD version.

The corresponding carbon dioxide ratings are 114g/km (RX350h 2WD), 123g/km (350h AWD), 197g/km (350 turbo) and 148g/km (500h).

Technically, then, the most economical RX, the 350h 2WD, can average 1300km per (65L) tank! The 350h AWD can achieve about 1200km, the 500h about 1000km and the 350 turbo just 776km (using a bigger 67.5L tank).

Both RX hybrids can drive silently in electric-only mode stepping off the line, at low speeds or when coasting along, and that's really impressive. Less so is every RX's thirst for more-expensive 95 RON premium unleaded petrol.

With great power comes… okay fuel efficiency. Actually, better than okay considering the twin-turbo V8 engine. The official combined cycle fuel figure is 11.9L/100km and real-world testing saw my figure at 13.2L.

Considering how hard I drove this and the type of driving I did this week, which was a combo of open-road and urban, this is very respectable. Expect it to be much higher in the city, though.

The SQ7 has a large 85-litre fuel tank and based on the official combined figure, you should be able to get around 714km of driving range. That isn’t as great as more fuel-efficient options but still good for those who like their road trips.

Audi recommends a minimum of 95 RON premium fuel with a preference for 98 RON for ultimate efficiency.

If you've owned any previous-generation RX, you'll definitely recognise most if not all of their good points, like ease, smooth-road and low-speed refinement, and complete reliability and dependability.

But now the Lexus has gained a far, far broader range of talents and capabilities. And that's a direct result of the series switching to the TNGA platform, like most of its brethren (and Toyota cousins).

Let's begin with the most exciting edition, the flagship RX500h F Sport Performance.

This is the brand's first hybrid turbo, and it's a cracker. Electrified for silky quietness when stepping off the line, the internal combustion engine (ICE) takes over seamlessly as soon as you need to really get moving, providing a rich, torquey shove as required.

While not BMW X5M fast, it's rapid all right, and satisfyingly responsive to your right foot. The whoosh is accompanied by an artificial (albeit quite nice) exhaust note, that's a bit turbine-like, to let you know you are or are about to break the law speeding.

Additionally, wearing 21-inch wheels and tyres, there's an exceptional amount of road grip, for safe, planted handling and roadholding. This applies to all the latest RXs, actually. But – and despite its 100-150kg weight penalty compared to lesser versions ­– the 500h feels the most athletic. Basically, it does what the tin says it should.

The flipside? While the adaptive dampers do smooth out most bumps, it can get a little jittery over some surfaces. And it is prone to some tyre noise intrusion over some bitumen. Yet, compared to former big-wheeled RX, the 500h's ride is comfy enough.

Next up is the RX350. This is basically the 500h with the same four-pot turbo engine but minus the electric motors and battery, so it benefits from a 155kg mass saving. And that's immediately obvious in its better high-speed agility.

However, while the engine loves a rev, the lack of electrification and all that meaty torque it brings is always noticeable, meaning the driver has to always mash the accelerator for overtaking to be over quickly. And as a result, the 350 can sound a bit noisy. Otherwise, for normal commuting and point-to-point travel, this is fine. Unremarkable but supremely capable. You'll miss the hybrid oomph, though. And the economy.

Finally, there's the RX most people buy – the 350h. Yes, there's a RAV4 engine and motor(s) stuffed in haute couture, but this is so much more than that. Performance from a standing start is always brisk, with speed piling on with delightful ease if you so desire, and there always seems to be some muscle left in reserve for instant manoeuvres – whether going fast or slow.

The whole experience is seamless, easy and muted. Only when you floor the throttle does the powertrain whine, but it's not that sort of SUV.

Plus, wearing the 21-inch wheels and with the adaptive dampers, the 350h steers, corners and rides well enough, being both skilful and accomplished, if not especially involving, let alone thrilling.

What we're saying is that the base hybrid proposition is good enough to wear the Lexus badge. The RX has finally come of age, dynamically speaking. And about time.

The performance is awesome and I made excuses all week to hop in and drive it. It doesn’t hurt that when you press the push-button start, the engine rumbles and growls. There’s even a ‘spitting’ sound as the turbo fires up. It all promises fun.

While the power feels immense, you do have to get used to how to handle it. For example, when you first shift into gear and pull your foot off the brake, the car lurches forward as if it’s rearing to go. It took me a couple of days to get used to the little quirks of it. 

The steering is controlled and responsive, adapting to the conditions and speed at which you’re driving. If you’re accelerating hard, the steering turns a little stiff and the seat belt tucks you into your seat, reaffirming the addition of that S in the model name.

The cabin is very quiet and there’s no shuddering or vibration to be felt through the steering or seat.

The SQ7 features sports adaptive air suspension and it's dependant on how you drive and what drive mode you’re in. It makes for an extremely comfortable journey and not just for those in the front. The rear passengers are nicely cushioned, too.

This is a big car but you don’t feel those dimensions when you park it. Even with its 12.4m turning circle, it’s not cumbersome with the adaptive steering.

The dynamic 360-degree view camera is super clear but the parking sensors are too sensitive for my liking. It might just have been an oddity on the particular model I drove but the emergency braking did pop on a few times (scaring the hell out of me every time!).

The SQ7 has a healthy suite of safety features with the following being standard: LED daytime running lights, lane departure alert, lane keeping aid, blind-spot monitoring, rear cross-traffic alert, dynamic 360-degree view reversing camera (it turns with the direction of the steering wheel), dynamic parking guidelines, front and rear parking sensors, rear occupant alert, intelligent seatbelt monitoring and adaptive cruise control.

It also features an active bonnet, meaning it will lift up and away from the engine if the sensors detect that a pedestrian has been hit. As well as an SOS emergency call button.

It has AEB and forward collision warning with car, pedestrian and cyclist detection which is operational from 10-85 km/h (10-250 km/h for car detection). It is usual to see it operational from 5.0km/h, though.  

The SQ7 achieved a maximum five-star safety rating from testing conducted in 2019. It only has six airbags, which is fairly low for a family car, but that does include curtain airbags covering all three rows.

Lexus now offers a five-year, unlimited kilometre warranty with roadside assistance.

Furthermore, hybrid versions of the RX include a 10-year, unlimited kilometre battery warranty.

Service intervals are at 12 months or 15,000km, whichever comes first.

The RX offers three years and 45,000km of capped-price servicing, with each one costing owners $695 – that's pretty competitive for a luxury brand.

So is the first-rate ownership experience. Amongst other benefits, there's Lexus' 'Encore' aftersales subscription program; free for the first three years, it includes myriad offers and services including discounted petrol.

Plus, owners can have their cars picked up remotely and returned washed, and with free use of a loan vehicle delivered to their door.

If I was spending my hard-earned cash on a vehicle like this, I would want to be treated like a queen when it comes to servicing.

Manufacturers should sweeten the pot when it comes to on-going servicing and ownership terms when you’re at this level but the SQ7 just comes with a pretty standard five-year/unlimited km warranty.

You can pre-purchase a five-year/75,000km servicing plan and it will set you back a total of $4100 (or an average of $810 per service), which is expensive but not outrageous for a performance vehicle.

Servicing intervals are reasonable at every 12 months or 15,000km, which is good.