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BMW reaches for mini-iX design appeal and lots of digital interior tech in renewing its best-selling model

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Premium car brands can’t afford to hang around when it comes to reinventing their big-selling models. BMW certainly hasn’t. Three years ago, it introduced the electric BMW iX luxury SUV, which boldly leapt into a new era for both exterior and interior design language, and now the fourth-generation BMW X3 is following suit.

These days, BMW is a brand defined as much by its SUVs - or actually, in BMW-speak, its sports activity vehicles - as much as its saloons. The previous X3 was its best-seller last year, with around 1000 sold each day, so the new one has quite the act to follow.

The next-generation iX3 will take on a very different look from the X3, with a new and smaller retro-inspired grille, as seen on the Neue Klasse X concept.

With typically Germanic efficiency of precise seven-year model cycles, the Mk4 X3 has arrived to offer fresh challenges to premium SUV rivals such as the Audi Q5 (which has just entered a new, hybrid-only generation), Porsche Macan et al.

The most significant change for this new X3 is what’s missing: an electric version. While the new model retains the same multi-powertrain CLAR platform as its predecessor, the successor to the iX3 will arrive next year as the production version of the Neue Klasse X concept, the first in a line of radically restyled EVs using a bespoke platform.

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DESIGN & STYLING

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This mid-sized upmarket SUV has become a car quite different than the one it replaces. The Mk3 BMW X3 felt like an expert in middle-market versatility; a car finally comfortable with its place in the showroom, with notes of old-school, ‘90s BMW maturity about its apparent quality and sophistication.

But the Mk4 X3 has quite apparently had its priorities shifted. It’s a slightly lower, wider and longer car, if only by an inch or so here and there. It has a slightly lighter, stiffer chassis, overhauled axles with a wider rear track and an evidently more sporting dynamic agenda. 

A familiar range of engines is offered, the highlights of which being more power for the range-topping six-cylinder M50 petrol and more electric range for the fleet-targeted 30e plug-in hybrid.

Both petrol and diesel four-cylinder mild-hybrid engines are offered besides (with 20 badging).

Every model has four-wheel drive, so carries BMW’s xDrive branding.

M Sport models (still by far BMW’s biggest-selling) tend to come with lowered M Sport suspension, 19in wheels and pacier ‘variable sport’ steering as standard, with adaptive damping an option.

It all makes for quite a familiar-feeling picture technically - if not in other ways.

The M50 will remain the range-topper until the full-fat X3 M arrives. With 393bhp and 428lb ft of torque, it features what BMW proudly trumpets as the most powerful straight-six petrol engine yet in an M Performance model, which sounds impressive if you don’t pause too long to ponder all those caveats.

You probably will notice the difference from the old model in terms of design. While the Neue Klasse models will usher in a fresh era of BMW design, this X3 seems to bridge the generations. So it gets a large, upright kidney grille in keeping with those features on the firm’s other recent models but also showcases BMW’s sustainability-driven ‘reductive’ pledge to cut back on design frippery.

There’s no chrome grille surround, for example: on M50 models (and optional on others), the kidneys are framed by a fancy LED light wrap called the BMW Iconic Glow.

The bodywork also has fewer lines, although big wheel arches and a flat rear window play to SUV styling traits.

The rear roof lip features a spoiler and there are side air deflectors, while you will notice new light designs at both ends too.

At the back, the exhaust pipes are hidden on all models bar the M50, which features fairly prominent versions to play up its sportiness.

There's a choice of nine standard paint colours and wheel sizes range from 18in to 21in.

INTERIOR

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The X3’s driving environment looks and feels quite different than it used to. You sit only medium-high, in a comfortable and widely adjustable seat, but in front of one of BMW’s latest-generation ‘curved display’ instrumentation and multimedia consoles, which brings a big extra hit of widescreen digital tech appeal.

This uses BMW’s latest Operating System 9.0 software; retains an iDrive-style rotary cursor controller; and, thanks not least to some useful shortcut menus and a new QuickSelect menu window, is easy enough to get along with once you’ve learned how to get the best out of it. But it certainly wants plenty of your attention; wants to cater for your every digital want and need; and seldom takes a back seat for long as part of the car’s wider driving experience.

There is, in fact, quite a lot about this interior that wants your attention. The car’s multimedia system is flanked by BMW’s ‘interaction bar’ multi-coloured, semi-translucent ambient lighting strips, which extend to wrap around bolder, feature-style interior door handles and air vents. The textured dashboard upholstery invites your gaze and your touch. Even the storage cubby at the base of the centre stack, with its integrated wireless device charging drawer, is patterned and framed with ambient lighting decoration. 

When you look elsewhere, however, at places and materials to which BMW isn’t directing your attention quite so hard, you will find a few plainer-looking and feeling mouldings and less tactile heft and solidity than the old X3 offered. Your view on this is likely to depend on how much you like all that the X3 has gained, of course, and there’s plenty. But to us, BMW seems to have lavished that little bit too much time, money and attention on the car’s digital and material razzle-dazzle and not enough on the markedly cheaper-feeling bread-and-butter content.

Next to the rotary controller on the centre console are the gear selector – which is a new, reworked design – and a haptic panel featuring some buttons that, among other features, allow you to select the drive modes and set driving preferences. But while it’s nice to have physical controls for these, the implementation on a single panel could be better. It’s hard to find the right place to press without looking, even with a few tiny ridges to aid your fingers, and the text is quite small to read at a quick glance.

 

The M50’s chunky sports steering wheel – leather-coated and with a racing-style red band at the top – is taken from the 5 Series and features well-positioned physical controls. In particular, the M50 gains bigger gearchange paddles behind the wheel than the lower-spec versions.

In terms of cabin size, the interior is on a par with the previous X3's and feels comfortable and spacious. There are a variety of useful cubbies, although the glovebox is on the small side. There’s a plentiful 570 litres of space in the boot too, so it ticks all of the boxes you would want for a premium SUV.

The M50 has various bits of M Sport-honed styling elements, such as part-Alcantara upholstery, while the entry-level 20 features a dash covered in a material made from recycled polyester, which arguably makes the cabin feel even lighter and more spacious.

ENGINES & PERFORMANCE

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Four powertrains will be offered in the UK. The 20 uses a 2.0-litre mild-hybrid four-cylinder petrol unit tuned for 205bhp, while the 20d features a 2.0-litre diesel four, which also gets a mild-hybrid system and puts out 197bhp. The diesel returns an official claimed 43.5-48.7mpg, depending on spec.

The plug-in hybrid is new, using the 2.0-litre four-cylinder petrol unit and an electric motor that’s integrated into the eight-speed automatic gearbox. The combined system output is 295bhp and, depending on spec, it offers an official electric-only range of 50-56 miles, which is a step up on the previous X3. Its battery can be charged at 11kW and it offers favourable official CO2 emissions of 21-26g/km.

So far, we’ve driven the petrol 20 and the more potent M50, which currently sits atop the range, with its output of 393bhp.

The M50’s potent engine gives it an impressive turn of speed, and it can be fairly ferocious in a straight line, feeling every bit as quick as its official 0-62mph time of 4.6sec would suggest. It’s not electric SUV fast, but then an EV doesn’t offer the distinctive and pleasing soundtrack and character of a straight six – even if that soundtrack does sound a little piped in at times. 

This is a responsive unit that syncs well with the eight-speed automatic gearbox and shifts the X3’s weight with ease. But it’s also smooth and quiet at a more relaxed pace, adding to the premium feel in more urban driving.

The 20's engine obviously can’t match the M50's for power or theatre, but it’s also a pleasingly smooth offering that's responsive throughout the power range. 

Sticking to an overhauled and improved model platform and engine range certainly seems to have allowed BMW to enhance the X3’s refinement levels. The 20 M Sport that we test drove really impressed with its mechanical isolation, all-round smoothness and fine drivability.

The mild-hybrid system does allow the engine to shut down and restart a fair bit at town speeds, but it happens very smoothly and quietly indeed. The petrol unit is well-mannered even when working quite hard - and, thanks to even more powerful electrification, it doesn’t struggle for accessible torque in the way you might expect.

As entry-level engines go, it’s amply powerful and surprisingly well-suited (although, returning only about 35mpg on our test route, it’s not especially economical).

RIDE & HANDLING

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While the X3 retains the same CLAR platform as the previous model, BMW’s engineers have been busy tinkering. As well as reducing the car's weight (although it still tips the scales at two tonnes) and increasing its body rigidity, they have worked on the strut front axle and the five-link rear in a bid to improve cornering.

M Sport models such as the M50 feature sport suspension and steering, along with upgraded brakes and an electronic rear differential. Our test car also had the adaptive chassis.

For an SUV, the X3 can hold its own in corners. The steering is precise and well weighted, with that dash of dynamic sportiness that BMW does well. It’s also predictable so it remains easy to place the car.

The various drive mode settings allow you to sharpen the steering should you wish.

While we've yet to drive the M50 in the UK, in continental Europe the car's body control was impressive, given the X3’s bulk, and the car maintained its composure well at speed.

It offered plentiful grip even on sodden wet roads, and the adaptive dampers ensured that the ride soaked up impacts and bumps well – although that observation comes with the caveat that the Bavarian country lanes of our test route were far better tended than those you will find in the UK. 

Tested on UK roads, however, the 20 M Sport gave us a different impression, surprising our testers by how much firmer-riding it felt than its forebear. Our route admittedly included plenty of fairly uneven surfaces, but our test car (on optional 20in wheels and adaptive dampers) had a busy, restless and quite irksome ride on any surface, even with its suspension set to Comfort mode.

It certainly has outright grip, body control and handling precision beyond what the average family SUV buyer would expect; but on a car this size and type, you wonder how much all of that would really add to the car's ownership appeal, even for a brand like BMW.

MPG & RUNNING COSTS

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The petrol 20 will start at £48,375 in base xLine trim, rising to £50,175 if you opt for M Sport.

The diesel 20d will also be offered with those two trim levels, priced from £49,785 and £51,585 respectively.

When it arrives, the plug-in hybrid 30e will start from £57,245 in xLine trim and £59,045 in M Sport trim.

Even the xLine package is well equipped, offering 18in wheels (19s on the 30e PHEV), an electric tailgate, tri-zone air conditioning, LED headlights, parking assistance and a raft of connected and online services.

M Sport adds 19in wheels for the 20 and 20d, along with high-gloss trim elements on the exterior, sport seats and Alcantara/Veganza combination upholstery. The upgraded M Sport suspension is also included.

The M50 is priced from £66,980 and comes in a single trim level that's based on M Sport. As well as the upgraded suspension and brakes, on the outside it gains 20in wheels, a quad exhaust and the illuminated grille surround. Inside, there are extra aluminium flashes on the interior trim, M Sport seatbelts and other elements.

Four option packs will be offered, including two Comfort Packs that include a Harman Kardon audio system and a Technology Pack (£2275 for the M50) that adds a head-up display and Driving Assistant Plus.

The M50 has official fuel economy of 34.0-36.7mpg, depending on the trim. In our test, we averaged just under 30mpg, which is comparable with other similarly potent warmed-up SUVs.

Of course, if fuel economy is a major concern, you would likely look elsewhere in the range.

The 20 that we also drove has official economy of 37.2-40.9mpg, depending on the trim, and during our test run it averaged MPG in the low-30s. 

The 30e PHEV has yet to arrive, but company car buyers are likely to wait for it, given its lower official CO2 emissions of 21-26g/km (compared with up to 189g/km for the M50) and electric-only range of 50-56 miles. We will have to wait until we drive it to determine how achievable those figures are in the real world, though.

VERDICT

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It may not be a technically radical departure, but the X3 has certainly taken some bold strides for its fourth generation. But, like its new interior tech and exterior styling, its ride and handling seem to be working hard to carve out an even clearer selling point for a car whose proven popularity didn’t really need fixing. The sales figures may well prove us wrong, of course, but we're not convinced that this was quite the right direction to go.

Both the exterior and interior makeover give the X3 a fresh new look and some extra character. As ever BMW's recent design work has the ability to be divisive, although to our eyes the X3 avoids the worst of the kidney grille excess, and even if the interior won’t be to everyone’s taste, it’s anything but bland.

To drive - and admittedly only on the evidence of German roads, as yet - the M50 version has a clear sense of dynamic edge but without the compromises in ride comfort that can sometimes occur when a manufacturer attempts to produce a performance SUV.

But the 20 M Sport does struggle for ride comfort on more challenging UK country roads, pitching and fussing busily in a way that some SUV buyers won't expect of a functionality-first family car.

Having been a more versatile, moderate, rounded and self-assured kind of SUV, the X3 has morphed into something bolder and more youthful, energetic and thrusting. It still has plenty of premium-brand refinements, of course. But our concern would be that the idea of living with such a car might be more appealing than the reality.

James Attwood

James Attwood, digital editor
Title: Acting magazine editor

James is Autocar's acting magazine editor. Having served in that role since June 2023, he is in charge of the day-to-day running of the world's oldest car magazine, and regularly interviews some of the biggest names in the industry to secure news and features, such as his world exclusive look into production of Volkswagen currywurst. Really.

Before first joining Autocar in 2017, James spent more than a decade in motorsport journalist, working on Autosport, autosport.com, F1 Racing and Motorsport News, covering everything from club rallying to top-level international events. He also spent 18 months running Move Electric, Haymarket's e-mobility title, where he developed knowledge of the e-bike and e-scooter markets. 

Matt Saunders

Matt Saunders Autocar
Title: Road test editor

As Autocar’s chief car tester and reviewer, it’s Matt’s job to ensure the quality, objectivity, relevance and rigour of the entirety of Autocar’s reviews output, as well contributing a great many detailed road tests, group tests and drive reviews himself.

Matt has been an Autocar staffer since the autumn of 2003, and has been lucky enough to work alongside some of the magazine’s best-known writers and contributors over that time. He served as staff writer, features editor, assistant editor and digital editor, before joining the road test desk in 2011.

Since then he’s driven, measured, lap-timed, figured, and reported on cars as varied as the Bugatti Veyron, Rolls-Royce PhantomTesla RoadsterAriel Hipercar, Tata Nano, McLaren SennaRenault Twizy and Toyota Mirai. Among his wider personal highlights of the job have been covering Sebastien Loeb’s record-breaking run at Pikes Peak in 2013; doing 190mph on derestricted German autobahn in a Brabus Rocket; and driving McLaren’s legendary ‘XP5’ F1 prototype. His own car is a trusty Mazda CX-5.