BMW 3 Series & i3 2027 review: International first drive | Mercedes-Benz C-Class Electric rival tested
By John Mahoney · 09 Nov 2026
The new BMW 3 Series and i3 are both timed to arrive around the same time in the first few months of 2027. When they rock up in dealerships, they will land with pricing that might confuse some consumers. On the petrol side, the range kicks off with the entry 320 that is priced from $83,900 plus on-road costs, while the flagship and sportiest petrol, the M350 xDrive, costs $128,900 (plus ORCs). Those prices make them between $4200 and $2500 cheaper than the higher-riding X3 SUV, which makes sense. The all-electric BMW i3, meanwhile, is for some reason more expensive compared to the iX3, with the i3 40 xDrive costing $96,900 (plus on-roads), while the flagship i3 50 xDrive costs $112,900 – making them $7000 to $7400 pricier than the mechanically similar, but more spacious battery-powered mid-size SUV. In the case of the 40 grades, that may be because the iX3 40 is rear-wheel drive rather than all-wheel drive. But still, it's a big difference. Also likely to undercut the BMW i3 is its closest rival, the Mercedes C-Class Electric, with the quicker, more powerful C400 4Matic flagship priced from just $105,700, a cool $7200 less than the BMW i3 with the bigger battery and more powerful motors. The combustion-powered BMW 3 Series and all-electric BMW i3 will initially just be offered with two powertrains each. On the petrol side, the range will kick off with the 320 that comes with a turbocharged 2.0-litre four-cylinder mild hybrid that produces 155kW and 330Nm of torque for a 7.4 second 0-100km/h sprint. Sitting above that is the fast M350 xDrive, which pairs a turbocharged 3.0-litre inline six-cylinder mild-hybrid that produces 326kW and 580Nm of torque. Off the line, thanks to traction-boosting all-wheel drive, 0-100km/h takes just 4.1 seconds. The all-electric BMW i3, meanwhile, comes with dual motors that provides for all-wheel drive. The entry i3 40 xDrive produces 275kW and 520Nm of torque, for a 5.4-second 0-100km/h dash, while the punchier i3 50 xDrive dishes out an impressive 345kW and 645Nm of torque for a brisk 4.7 second sprint to 100km/h. Arriving later will be lower-powered single-motor versions, plus a faster-still i3 M60 xDrive that gets an uprated rear motor that raises its combined output to 450kW and 875Nm of torque for a claimed zero to 100km/h of just 3.9 seconds. If that still sounds too sedate, from the middle of 2027 a wilder M3 will debut that should be powered either by a turbocharged 3.0-litre inline-six, or a monstrous quad-motor EV powertrain that could pump out as much as 750kW. On the combustion side, more variants are on the way, with at least one plug-in hybrid version with an EV range of more than 100km set to rock up before the end of 2027. All variants of the new BMW 3 Series and BMW i3 are surprisingly efficient. The 320 can average a respectable 6.5L/100km and even the powerful M350 xDrive is claimed to return a reasonable 7.5L/100km on the combined WLTP test cycle. If anything, both EV versions are even more impressive when it comes to efficiency. The i3 40 xDrive with its 82.8kWh (net) battery averages just 14.3kWh/100km, enabling it to drive up to 710km on a single charge. Choose the i3 50 xDrive and you'll struggle with the concept of range anxiety, as the combination of its 13.4kWh/100km energy consumption and massive 108.7kWh battery sees its travel up to 912km before it needs plugging in. Comparing the Mercedes C400 4Matic with its smaller 94kWh battery, and the BMW wins as it pips the Benz for efficiency (14.1kWh/100km) and range (762km). Plug in the BMW i3 and both variants of the all-electric sedan come with impressively short 10-to-80 per cent battery refills. Employing powerful 800-volt electrics, the i3 50 variant's big battery can accept a 400kW peak charge for a 21-minute 10-to-80 per cent top-up. The small battery matches that time, even though its powerpack can only be topped up at 300kW. The same charge in the Benz, meanwhile, takes only a minute longer. The gap worsens if you have to rely on Australia's most common 400-volt chargers, where the BMW claims a 200kW top-up is still possible, while the C-Class sees its 330kW peak charging rate fall to a lowly 100kW. In Australia the i3 comes with the more powerful 22kW AC charger as standard, with a 0-to-100 per cent charge taking between four hours and 15 minutes for the i3 40 and five hours 30 minutes for the i3 50. Picking up where the BMW iX3 left off, the new BMW 3 Series and i3 embrace the brand's latest interior design, which is claimed to be both modern and driver-centric. Highlights include the lack of wood, carbon-fibre or piano black plastics, with the cabin stylists preferring classier fabric coverings for the surfaces. The minimalist theme that runs throughout is largely a success, aside from a lack of physical buttons that means you have to dive into the large central touchscreen to even adjust the vents' airflow. Earning points back is the configurable Panoramic Vision digital instrument cluster that stretches from pillar to pillar and is supported by a large head-up augmented reality display that is either too distracting on the move, or a godsend when it comes to displaying navigation instructions, depending on your view. Positioned next to a new multifunction steering wheel is a large 17.9-inch multimedia that is angled towards the driver. Plump for the priciest M350 xDrive and you gain a sportier M steering wheel, plus a pair of more supportive M Sport seats. Space within either the 3 Series or the i3 isn't quite as generous as the bigger Benz, but there's enough leg- and headroom in the front and second row, although the latter in the i3 isn't as comfortable than in the petrol, as it needs a raised floor to accommodate the battery that robs you of foot room. Boot space is limited to 450 litres in the 3 Series and just 420 litres in the i3, which gains a 31-litre frunk that houses the charging cables and tyre repair foam and compressor. Those figures pale beside the C-Class Electric, that has a larger 470 litre boot and a more generous 101-litre frunk. Beneath the skin, the BMW 3 Series and BMW i3 are entirely different cars, based on unrelated platforms but, despite this, there are some common traits between the two when it comes to the way they steer, handle and ride. The link is deliberate, engineers brimming with self-confidence benchmarked the combustion version of the current 3 Series as the car to emulate with the new versions, which isn't a bad call since it remains at the top of the class for handling. What's changed in the new M350 xDrive, which mechanically shares plenty with the old M340i, is that at highway speeds wind, tyre and road noise are now all better isolated. In the sports sedan even the loud horn barely intrudes into the cabin – although don't be misled, the new BMW is still an engaging steer. On a tight, twisty road, performance is strong and, thanks to all-wheel drive, you can deploy as much of its thrust as you dare. Highlights include the sweet-spinning, but muffled, inline-six and the snappy eight-speed auto, but it's the ride and agility that steal the show. The car we drove came with the adaptive dampers that are standard on Australian-spec cars, which perfectly balance a controlled ride with comfort. Push hard, preferably on track, and it feels like it's easier than ever to drive to the limit without any intervention of the stability control, egging on the enthusiastic driver. If anything, despite its 0-100km/h deficit on paper, the i3 50 xDrive feels even quicker than its petrol sibling, thanks to its instant torque. Doing without air springs, or rear-wheel steering, the battery-powered take on a premium sedan has less body roll and is blessed with more precise steering and powerful brakes. Again, traction and grip are high and levels of involvement and entertainment are beyond any of its rivals. What's missing are the lack of steering wheel paddles for either virtual gearshift, or the ability to alter brake regeneration, although as well as high and low regen modes, BMW offers an adaptive regen mode that cleverly auto-brakes the car ahead of a corner on a country road. From debut, the BMW 3 Series and the i3 will come with a hands-off cruise control at speeds of up to 130km/h on the highway. Later on in 2027, the system will be upgraded to match what's offered by Tesla with its supervised FSD. While not officially confirmed for either powertrain, the limited luggage-carrying capacity of both the BMW 3 Series and i3 could soon be fixed by the arrival of a Touring wagon body style. We also noted that the ride on the i3 wasn't quite as controlled or compliant as the petrol because it lacked adaptive dampers, but those should be available when Australian deliveries begin later that year. Other than the odd price premium over the iX3, there's a lot to like about either the petrol or battery-powered sedan. The BMW 3 Series and BMW i3 come with high levels of standard kit in Australia, but more affordable, less well-specified versions might come later Standard on the BMW 3 Series are: 19-inch alloy wheels Panoramic Vision instrument cluster 17.9-inch infotainment 3D augmented reality head-up display Tri-zone climate control Ambient lighting Automatic tailgate Panoramic sunroof Heated front and rear seats M Sport steering wheel M Sport seats Harman Kardon 13-speaker sound system 4 USB-C charging ports Wireless charging with cooler and magnetic ring 22 AC charging 360-degree camera Auto-parking Adaptive suspension Illuminated front grille Options include larger 20-inch alloy wheels ($1539 to $2000) and higher-grade Nappa leather seats. There's also the option of the M Sport Pro package ($4410) that adds a sportier body kit that introduces a rear spoiler and black mirror caps, M Sport seats, M seat belts and the M steering wheel. Standard safety kit includes: Auto emergency braking (AEB) with pedestrian and cyclist detection Nine airbags Adaptive cruise Lane-keep and lane-change assist Blind-spot monitoring Traffic sign assist Speed limiter and warning Park assist The BMW 3 Series and i3 come with a five-year, unlimited-kilometre warranty, which is only average nowadays, while the all-electric sedan adds a further eight-year/160,000km protection for its high-voltage battery. All new BMWs come with 24 months of free roadside assistance. BMW has not announced when the BMW 3 Series or i3 will need servicing, with the German brand continuing to prefer its condition-based intervals, but expect a check-up to be required every 12 or 24 months depending on how you drive your car. Pre-paid servicing for up to six years should be available.