What's the difference?
Tim Robson road tests and reviews the BMW 4 Series with specs, fuel consumption and verdict at its Australian launch.
Following on from the mid-life tweaks to BMW's mainstay 3 Series in December 2015, the spin-off 4 Series line has now been updated along the same powertrain and equipment lines.
Based on the same mechanicals as the 3 Series, the three-year-old 4 Series was ostensibly formed to give BMW's nomenclature some sense of logic by designating its two-door machines as 'evens' (2 Series, 4 Series and 6 Series) and its four-door cars as 'odds'.
Three variants currently make up the 4 Series range, including a two-door Coupe, a two-door Convertible and – oddly, given the naming regime – a four-door Gran Coupe that also sports a hatch-like tailgate.
The Polestar 2 was one of the first electric vehicles (EVs) in Australia to break through to the mainstream, however it has always been relegated to the Tesla Model 3’s shadow.
As a result Polestar is constantly playing catch up, releasing update after update for this premium-pushing electric liftback. The most notable was a major mid-life update in 2024.
Two years after this, Polestar has just rolled out the 2026 model year (MY26) update which introduces a range of subtle changes, largely under the surface.
It comes as Polestar is now introducing newer models, there’s mounting pressure from legacy carmakers who are only now catching up to EV tech, and Australians are moving away from buying passenger cars to SUVs.
Has this latest update improved the appeal? Read on to find out.
The 4 Series line offers three distinct points of difference from the more traditional 3 Series, each with their own attraction. The sharpening of the sticker prices and the additional spec helps their cause as well, with the 430i Coupe probably our pick of the range. The 440i is the firecracker of the group, while the 420d is also worth a look, thanks to its value and prodigious torque output.
This latest update for the Polestar 2 is lovely, but driving the original is a reminder of how solid this car has always been if you overlook the inherent impracticalities of being an EV on a combustion-engine platform.
The fact you still get steady flow of over-the-air software updates bringing new features, plus you can now upgrade to the new Qualcomm processor chip, saving some coin and getting a second-hand model that’s a couple of years old isn’t a bad option at all.
Note: CarsGuide attended this event as a guest of the manufacturer, with meals provided.
No external changes to the 4 Series' bodywork have been affected for this midlife refresh, but there have been plenty of tweaks to the standard equipment offerings right across the board.
I’ve always been a fan of the Polestar 2’s exterior design and unlike many new cars it has aged like fine wine over the years. You need to remember the Polestar 2 dates back to 2016 when it was first revealed as a Volvo concept.
It still has clean lines, iconic lightning signatures, plus a tough stance that evokes just a touch of muscle car.
While it has taken me a while to come around to the new blanked-out grille insert, it suits the character of this car given it’s an EV. It also aligns with the wider Polestar design language.
For 2026 there haven’t been any major changes to the exterior. There’s a new sandy-like ‘Dune’ exterior paint colour replacing the silver ‘Jupiter’, plus a new 20-inch forged alloy wheel design for the Long range Dual motor Performance.
Inside, the Polestar 2 looks fundamentally the same as it did when it first launched, in the best and worst ways.
I appreciate how traditional car-like the layouts of the steering wheel, digital instrument cluster and touchscreen multimedia system are. Sure it doesn’t scream ultra high-tech anymore like some of its rivals, but there’s still an understated premium feel to it.
The same can be said for the rest of the Polestar 2’s interior. Everything feels purposeful in a minimalist way which helps make for a clean design.
Speaking of purposefulness, the optional Bowers and Wilkins sound system features a prominent tweeter on top of the dashboard. It looks stunning and is functional, helping to create an incredibly punchy and full sound stage in the cabin.
One of the few finishes I dislike in the interior is the glossy piano black on the steering wheel buttons. You interact with these frequently and it doesn’t take long for fingerprints to present themselves.
There’s now a new synthetic leather upholstery finish for those who opt for the $4700 Plus package. It’s quilted which helps emulate a premium puffer jacket-like look.
Although it’s expensive, the $4400 ‘Bridge of Weir’ Nappa leather upholstery is beautiful and required if you want ventilated front seats. You can only get black and white finishes, which is fine, but bringing back a tan or caramel option would be delicious.
Two-doors are never the most practical devices, but the 4 Series Coupe and Convertible duo make a decent fist of it for front-seat passengers. There are bottle holders in both doors and a pair of cupholders in the centre console, along with a large lockable glovebox.
The centre bin is, however, quite shallow, and houses the car's single USB port inside it. There is covered storage under the dash for smaller items, and a small rubber-lined tray that the current crop of phones has outgrown.
The rear seating in the Coupe is reduced to almost a formality, especially if the front seat passengers are tall and the front seats are set back, while the sloping roofline reduces head space quite considerably. A centre armrest contains a pair of cupholders, and there are small side pockets.
Rainy conditions precluded us from trying the Convertible's metal folding roof, but the rear seat space restrictions also apply here. Its 370 litres of boot space is roomy enough for a drop-top, while a clever lifting function raises the folding roof structure up by about 300mm to allow luggage to be stowed under the panels when the roof is down. Capacity drops, though, to just 230 litres.
The Gran Coupe, on the other hand, is the most practical car in the entire 3 and 4 Series line-up outside of the 3 Series Touring wagon. With a large, flat load area, and a hatch-like tailgate, the Gran Coupe can swallow 480 litres of gear with the seats up and an impressive 1300 litres with the seats lowered.
Face-level rear vents, more head and backseat legroom – not to mention the fact you don't have to squeeze into the rear past the front seat – makes the Gran Coupe a most useful device, and it's little wonder it's the most popular variant of the three.
This has always been the downfall of Polestar 2 and it remains true.
While it’s pretty and has a cockpit-like design, the cabin can feel compromised in terms of space and storage. This is primarily due to the centre console which angles upwards sharply, aggressively segmenting the driver and front passenger space.
The only storage spots on the centre console include a shallow shelf under the centre console, a wireless phone charger and another uncovered storage nook under the touchscreen.
It doesn’t help that the cupholder situation doesn’t allow for a proper centre armrest. You either have no cupholders and an armrest, one cupholder and your arm barely reaches the armrest, or two cupholders and the centre armrest flops into the backseat space. It’s not ideal.
Gripes aside, there are still positives to the Polestar 2’s front row. The seats are comfortable on longer drives and allow for a large degree of electric adjustment.
Ahead of the driver the steering wheel thankfully has physical buttons, allowing for easy use on the move. I also love how satisfying the indicator stalk thwack is. It’s the little things that count.
The digital instrument cluster has a minimalist look and can be customised with a few layouts. I particularly like the Google Maps layout which shows your navigation when using the in-built app.
Moving across, the Google Built-in software for the multimedia system is still up there as one of the most usable out there currently. It’s easy to navigate, plus if you get lost there’s a convenient home button at the bottom of the screen.
Both screens are now driven by a more powerful Qualcomm processor chip which allows for better responsiveness, smoother performance and higher download speeds for in-car apps.
Although we didn’t get a huge opportunity to stress test this new chip, it’s definitely an improvement on the old one. You can technically upgrade your old Polestar 2’s chip through a Polestar service centre, though it conveniently doesn’t list how much this costs.
While physical switchgear is limited, there’s still enough to get by. Over the years I’ve grown accustomed to using the touchscreen to change the climate control, though some physical dials and buttons would be nice.
Apple CarPlay and Android Auto are available in wired form only, which is surprising as wireless smartphone mirroring is now commonplace. It does mean however that your phone will charge up reliably.
Moving to the second row, it’s arguably where the Polestar 2 is at its worst. At a leggy 182cm I do fit behind my driving position but headroom is tight.
It doesn’t help that there’s a huge transmission tunnel which technically isn’t needed given this car is fully electric. That’s a downside of using a combustion-engine platform.
Second-row amenities include air vents, two USB-C ports, as well as a fold-down armrest with cupholders. Heated outboard seats are optional.
At the back the button to pop the boot is down where the number plate is. It’s not overtly obvious unless you know where to look.
As standard the tailgate is manually operated and you need to get the $4700 Plus pack in order to get it electrically operated. It also gets a hands-free function which is handy if you’ve got your hands full with bags.
Boot space is 407L with the rear seats upright, expanding to 1097L with them folded. This includes a 43L underfloor section which is large enough for some cables. The boot size is fairly standard for a vehicle of this size and type.
There’s also a 41L front boot which can be used for further cable storage or other various storage needs.
Entry into the 4 Series world now stands at $68,900 plus on-roads for the petrol 420i Coupe and Gran Coupe, and tops out at almost $118,000 for the 440i Convertible.
Both the 420i and 420d have been boosted by the addition of adaptive M dampers, a heads-up display, powered folding rear-view mirrors, lane-change warning, driving assistant and BMW's surround view camera with top and side views.
BMW claims the extra kit is worth just over $8000. Leather seats, sat nav, BMW's ConnectedDrive Emergency call system, bi-Xenon headlights and reversing camera are also featured. An eight-speed automatic transmission is offered as stock, but a six-speed manual can be optioned at no cost.
The diesel version costs an additional $2200 over the petrol powerplant.
Stepping into the 430i, the M Sport Package is offered as standard, with the Luxury line, which includes a leather-trimmed dash, a no-cost option.
Additional standard equipment over the outgoing 428i includes 19-inch M rims, heads-up display, lane change warning, driving assistant and surround view camera. The 430i also gains electric lumbar support for driver and front passenger seats and a nine-speaker stereo system over the base 420i.
Finally, the range-topping 440i scores a heads-up display, lane change warning, driving assistant, surround view camera, adaptive LED headlights, leather dash, front seat heating, high beam assist, active cruise control with stop and go function and parking assistant over the outgoing 435i.
Over the 430i, the 440i also gets variable sport steering, a Harman/Kardon surround sound system with 16 speakers, a leather instrument panel (with M Sport Package), ConnectedDrive internet and concierge service, and air collar neck-warming ducts for the 440i Convertible.
The 2026 Polestar 2 starts at $62,400, before on-road costs, for the Standard range Single motor and extends all the way to $85,080, before on-road costs, for the Long range Dual motor with the Plus and Performance packages.
This is more expensive than the similarly premium-pushing Tesla Model 3 ($54,990 to $80,900, before on-roads), as well as the more budget-oriented BYD Seal ($46,990 to $61,990, before on-roads).
Despite this, Polestar currently has some major deals and offers on new 2026 Polestar 2 stock to the tune of up to $13,000 off the drive-away price. This can see you drive away in a brand-new model for as little as $55,763, drive-away, in Victoria, which is around $5000 less than a base Model 3 RWD.
There’s a catch though… options. There is a slew of option packages and singular options available and they add up quickly.
Most notable is the new $3500 14-speaker Bowers & Wilkins sound system that must be bought in conjunction with the 'Plus package' which is $4700 on all trims besides the Long range Dual motor as it’s already standard.
Annoyingly, a heat pump is part of the $1500 'Climate package' which also brings heated rear seats, a heated steering wheel and heated wiper nozzles. So many carmakers now include heat pumps as standard fare in EVs as they help reduce energy consumption during colder months.
Beyond this, there’s a standard base of equipment which is fine for the price point. Highlights include LED headlights, a 12.3-inch digital instrument cluster, 11.2-inch touchscreen multimedia system, wired Apple CarPlay and Android Auto, wireless charger, dual-zone climate control and heated front seats with electric adjustment.
There are two new petrol engines, two new badges and prices cuts of up to $10,000 right across the board for the line-up, along with additional standard equipment that improves the value equation even further.
The line kicks off with the 420, which can be had in either diesel or petrol guise. The 420i gains BMW's new B48 2.0-litre four-cylinder turbo petrol engine, which gains 5kW over the old motor to produce 135kW and 270Nm.
It also benefits from slightly improved fuel economy, with a drop of 0.3 litres per 100km for the Coupe and 0.5 for the Gran Coupe to 5.8L/100km, and a fall of 0.2L for the Convertible to 6.2L/100km.
The 420d retains its 140kW, 400Nm 2.0-litre four-cylinder turbo diesel engine, which returns 4.3L/100km in the fixed roof cars and 4.7L/100km for the Convertible.
The 430i – formerly known as the 428i – also receives the new 2.0-litre petrol engine, albeit in a 185kW/350Nm tune. Its fuel economy drops a healthy 0.6L for the Coupe and Gran Coupe and 0.4L for the Convertible, posting figures of 5.8 and 6.3L/100km respectively.
The top-spec 435i has been transformed into the 440i with the addition of BMW's new Twinpower 3.0-litre straight six petrol motor. Its output jumps 15kW to 240kW and by 50Nm to 450Nm, and its consumption falls by more than half a litre to 6.8 litres per 100km for the closed-roof pair and 7.2L/100km for the Convertible.
All cars come standard with a 'traditional' ZF eight-speed torque converter automatic transmission with steering wheel paddles as standard fitment, while a six-speed manual gearbox is a no-cost option across the line.
No changes have been made to the Polestar 2’s electric motor set-up for 2026.
Both the single-motor versions have been rear-wheel drive now for a few years and produce either 200kW or 220kW, depending on the battery pack.
The Long range Dual motor adds a front-mounted electric motor bringing total system outputs to 310kW and 740Nm. It’s capable of doing the 0-100km/h sprint in 4.5 seconds.
The $8980 Performance pack (available only on the Long range Dual motor) bumps the total system power output to 350kW. It also reduces the 0-100km/h sprint to 4.2 seconds.
Our brief test loop on a rainy, blustery Melbourne winter's day in all three model types (but no diesel) netted varying fuel consumption readings across the line; we recorded 8.4L/100km in a 420i sedan against a claimed figure of 5.8, 9.8L/100km for the 430i Gran Coupe against a claimed figure of 5.8L/100km, and 8.4L/100km against the 440i Gran Coupe's 6.8L/100km.
Although we didn’t get to drive it at this media launch, the entry-level Polestar 2 Standard range Single motor has arguably received the biggest refresh of the line-up with this MY26 update.
It now has a slightly larger 70kWh lithium-ion battery pack sourced from CATL, replacing the LG Chem-sourced 69kWh lithium-ion battery. As a result there’s 554km of WLTP-claimed range with up to 554km (up from 546km).
Long range versions still have a CATL-sourced 82kWh lithium-ion battery with between 568km and 659km of WLTP-claimed range, depending on the variant. This is good but Tesla has moved the game forward with its Model 3 Long Range RWD which offers up to 750km of range.
We didn’t get a chance to fully test out energy consumption during this media event, but Polestar claims between 14.8kWh/100km and 17.2kWh/100km, depending on the variant. This is much better than when the Polestar 2 first launched.
While the maximum AC charging rate remains at 11kW across the line-up, the Standard range versions can now DC fast-charge at rates up to 180kW (up from 135kW). This means a 10 to 80 per cent charge can now take as little as 26 minutes.
Maximum DC fast-charging for Long range versions is still up to 205kW, allowing a 10 to 80 per cent charge in 28 minutes. Lots of newer rivals offer faster charging now.
BMW introduced a raft of tweaks to the 3 Series platform late last year, which have translated over to the 4 Series. The key addition across the line is BMW's two-stage adaptive dampers that feature a Sport and a Comfort circuit, fitted as part of the M Sport pack that comes standard on the 430 and 440, and is a $2600 option on the 420.
Larger 19-inch rims are fitted to the 430i and 440i cars, while the 420 gets 18s out of the box. It's possible to fit 18s on the more expensive cars, as part of the no-cost Luxury option pack that supplants the standard M Sport pack.
While our test was brief and held in less than ideal road conditions, the large-wheeled 4 Series really didn't enamour themselves to this author. There's a distinct lack of communication from the tyres and chassis through the steering wheel and your backside, while the combination of firm Sport shocks and large 19-inch wheels with narrow-section tyres made for an uncomfortable ride over country roads.
Sampling a 420i with the Luxury 18-inch rims, however, improved things immensely, with much better feedback and comfort that didn't come at the expense of handling.
One of BMW's strong points should be its steering, given all the 3 and 4 Series cars are still rear-wheel-drive… but it's not, unfortunately. The electrically assisted set up is far from perfectly calibrated, feeling too dull and digital underhand, no matter what the setting.
The pick of the bunch performance wise is – logically – the six-cylinder 440i. The turbo powerplant is potent from right down the rev range, with a muted yet still pleasing engine note permeating the cabin. The self-shifting mode on the eight-speed auto does a good job of keeping up as well.
The updated 2.0-litre four is a sprightly performer, too.
While outright practicality isn’t the Polestar 2’s strong suit, once you get on the road this melts away almost instantly.
This EV is and has always been a driver’s car that’s engaging and rewarding to steer. It’s a shame that many people’s first experience with it was likely in the second row as a rideshare with a driver that has a bad case of taxi foot.
Surprisingly, during the media launch drive program we had the opportunity to sample the original MY22 Long range Single motor and compare it back-to-back to the MY26 models. It’s rare this kind of thing happen.
This is notable because single-motor versions made the switch from front- to rear-wheel drive back in 2024.
While the MY22 example feels like a bulldog yet still capable of carving up corners, it holds up well if you ignore the odd cabin rattle and creak. You can also feel a marked difference with how the rear guides the latest MY26 Long range Single motor instead of the front when pushed.
This isn’t apparent in calmer, everyday driving situations. If you’re not a car person you likely wouldn’t be able to tell the difference.
The rear-mounted electric motor produces an adequate amount of oomph, allowing you to get up to speed with ease. Like all EVs you get snappy acceleration from a standstill, which is thrilling.
This is dialled up to 11 in the Long range Dual motor Performance. Although the Model 3 Performance is technically faster, it still feels like this Polestar 2 is quick enough.
In the fully loaded all-wheel drive trim you’re able to carve corners enthusiastically. It’s incredibly confidence-inspiring to chuck into corners as there’s grip for days and a bucketload of power to back it up.
Although the regenerative braking system is pretty powerful already, the Performance pack adds chunky Brembo physical brakes for added peace of mind. Perhaps Tesla could take note of this?
The aforementioned Performance pack also adds manually adjustable Öhlins dampers with a ‘Polestar Engineered’ performance chassis. It’s an incredible package with a dialled-in feel, though if you want to adjust the dampers you need to jack up the car.
If you’re not keen on outright performance, the regular Polestar 2’s suspension set-up still holds its own but has an added level of all-around comfort. It’s an improvement from the original which was a little too firm.
Across the line-up the steering is direct and makes this car feel nimble regardless of where or how you’re driving. You’re able to select from different steering feels which increase or decrease the resistance.
Given EVs have no engine noise, they can sometimes have more noticeable road and wind noise out on the open road. Thankfully the Polestar 2’s cabin is quiet enough, that is unless you’re driving on coarse-chip roads.
six airbags, lane departure warning, pre-collision safety pack, parking sensors, active cruise control with collision warning, AEB and pedestrian warning, along with reversing camera and surround-view cameras across the line.
The Polestar 2 received a maximum five-star ANCAP safety rating based on testing conducted in 2021.
Standard safety equipment includes eight airbags, autonomous emergency braking (AEB), blind-spot monitoring, rear cross-traffic alert, adaptive cruise control, lane-keep assist, lane centering, front and rear parking sensors as well as a surround-view camera system.
This amount of safety tech is pretty standard fare now, but I particularly like how well they are tuned. It’s more noticeable in a world where new cars from new carmakers continually chime at you even though you’re driving normally.
There are ISOFIX child seat anchorages on the two outboard rear seats, plus top-tether points on all three rear seats.
BMW offers a Service Inclusive program at the time of purchase, which for $1340 covers everything – including items like spark plugs, brake fluids and other fluids - for five years or 80,000 km scheduled. The cars are also covered by a three-year free roadside servicing program, in addition to BMW's two year, unlimited kilometre warranty.
The Polestar 2 is covered by a five-year, unlimited-kilometre warranty, whereas the high-voltage battery is covered by an eight-year, 160,000km warranty.
While this battery warranty length is standard, a five-year warranty is getting a little short now in the grand scheme of things as many brands are moving to seven-year warranties.
Owners also get five years' of roadside assistance which can be accessed by pressing the ‘Connect’ button on the overhead console. It’s available 24/7 and includes car recovery and alternative transport, if required.
Logbook servicing is required every 24 months or 30,000km, which is standard for EVs. At the time of writing Polestar Australia was finalising service pricing for the MY26 2 and we'll update this review as soon as we receive the details.
There are a total of 23 Polestar service centres around Australia, a number of them shared with Volvo.