Subaru Solterra vs BMW X Models

What's the difference?

The new Subaru Solterra AWD gets a lot right and is a well-rounded effort in showcasing an electric medium SUV that has passenger comfort, sharp external styling and is easy to drive.

Once you start comparing it to some rivals, it doesn’t always come out ahead of the pack but I still like it for what it is. My seven-year old thinks its fun and very comfortable. He enjoys the easy practicality of getting in and out without any assistance, too.

If a BMW X3 is for you, then we have no quarrels with that. It’s a better all-round vehicle than the one it replaces and represents better value. And even though BMW mandates a hybrid driveline, there are still some significant choices within that framework.

By all means buy the M50 if you crave the rush of acceleration that almost 300kW can provide. And if efficiency is your altar of choice, then the plug-in 30e makes a lot of sense, too.

But even if you can afford either of those two more expensive variants, whatever you do, don’t dismiss the entry-level 20 model. At least drive it alongside the others and then make a decision based on all the facts, and not the assumption that entry-level equals the car you afford rather than the car you want.

It might be cheaper, but there’s absolutely no doubt that the 20 model is the one that shines and arguably makes the most of the opportunities BMW’s latest tech offers.

Sometimes less really is more.

Note: CarsGuide attended this event as a guest of the manufacturer, with accommodation and meals provided.

The Solterra has its own vibe compared to the rest of the Subaru family and that’s most likely due to the Toyota partnering.

The tail-lights are sharply pronounced and the many pleats across the body panelling swing more towards Toyota styling than Subaru but it doesn't stick out like a sore thumb.

The heavy-use of black plastic mouldings on our test model's 'Smoked Carbon' paintwork looks okay but it wouldn't do any favours on a lighter colour.

The exterior on the whole looks bold and fun, and I like the fact that it's not pillowy in its shape as some of its rivals are. Those hunting for a sporty-looking EV will find something charming here.

The cabin is different from anything I’ve seen from Subaru so far. Some of it's fun, like the squared off steering wheel which looks rally car-ish but some of it’s odd, like the way the 7.0-inch digital instrument panel has been pushed back towards the windscreen in its own little nook.

The steering wheel can get in the way of viewing the graphics of the instrument panel and its placement looks disjointed from the rest of the dashboard elements.

The black and grey knit-looking cloth upholstery is warm and inviting and is found across the dashboard, seats and some door panels but there is enough cheap-looking black cloth throughout to detract from the general aesthetic. Had the Solterra not been pushing $70K, that wouldn't bother me, but it is, and it does.

The interior is pleasant but the exterior is definitely the highlight of the design.

It might be badged an X3, but this is no small vehicle. In fact, it’s bigger than the original BMW X5 (which set the tone for this entire market segment) with a length of 4755mm (4667mm for the first X5) and a width of 1920mm (1872mm). That said, it’s 25mm lower than the outgoing X3 in a move to emphasise its sportiness. Shorter it may be, but it’s also 16mm wider on the front track and 45mm wider on the rear than the outgoing model.

BMWs latest styling cues also appear in the new car, including the large, split-kidney grille that, for Australian-delivered cars, is also lit around its edges. The short overhangs that characterised the original X5 (and soon characterised this whole BMW genre) remain, and the T-graphic LED tail-lights round out the stylistic touches.

The other thing we noticed (and we’ve seen it on other cars recently) is a panoramic sunroof that doesn’t actually open.

The practicality of the cabin is good for the class and the 212mm ground clearance means it's an easy car to get in and out of.

The extra-wide centre console makes the front look cramped but it isn't. And the the backseat is huge on space. Seriously decent headroom and legroom for the class and the flat floor means middle seaters will be comfortable, too.

Both the front and rear seats are well-cushioned and comfortable. You could easily do a long trip.

The driver's is the only powered seat (it also has lumbar support) but it's great that all but the middle seat feature a heat function for added comfort.

My seven-year old finds the back row comfortable because of its directional air vents and tall seating position providing a good view out of the wide window.

Individual storage is a bit low for the class but it does feature a handy shelf underneath the centre console which is large enough for a small handbag or the manual and logbook... because there is no glove box in this model!

To be fair, most are too small to be of real use outside of storing the 'ahem' manual and logbook.

Each door gets storage pockets and a skinny drink bottle holder and both rows get two cupholders. The rear gets map pockets too but that's it.

The boot features a tyre puncture repair kit, level loading space and 410L of boot capacity with all seats in use. The capacity is a bit lower than its rivals but has been adequate for my grocery run and the odd errand. It's great both Solterra models have a powered tailgate as standard.

The 12.3-inch touchscreen multimedia system looks good and is pulled directly from Toyota so the graphics and accessibility are on-point for everyday use.

You also get built-in satellite navigation which is always handy to have but you miss out on any over-the-air updates or a dedicated Subaru connected services app. 

The rest of the technology is solid with each row getting two USB-C ports and the front also featuring a USB-A socket and 12-volt outlet.

Cabin space is plentiful in the X3 with loads of room in the front, possibly thanks to the dashboard that is pulled back from you with only the twin screens and steering column offering themselves up to the driver. Even the air-vents are somewhat hidden. There’s good vision out and the seats themselves are lovely. The step into the cabin feels to be at just the right height, too; not too high, not too low.

Rear seating is good, too, although the X3 will always be better as a four seater than five thanks to the shape of the rear bench, but the glass roof opens the space up and there’s plenty of charging points and storage nooks. The sun blinds on the rear-side windows of the more expensive versions should be standard kit on every car sold in Australia.

We’ll take exception to the new gear-selector which doesn’t have a defined Park position and instead relies on applying the park-brake to engage Park. But the ambient light and contrasting cabin colours are a bit of a breath of fresh air.

There are levers in the cargo area to quickly fold the rear seats (60:40) at which point luggage space jumps from 570 litres in the mild hybrid cars to 1700 litres. The battery-pack of the 30e model means that luggage space starts at 460 litres and can be expanded to 1600 litres.

The latest version of BMW’s sometimes controversial iDrive operating system is simpler and easier to use than before and supported by a new operating system, but there’s still some familiarisation necessary. One improvement has been the addition of QuickSelect which works somewhat like the old favourites button system and gets around the need to drill into menus to access the functions you want.

A head-up display is a terrific addition, although where some displays are more tolerant of polarised sunglasses, the HUD in the BMW didn’t like mine and went dark at the most inconvenient angles.

None of the X3 variants feature a spare tyre of any sort. The 19-inch tyres on the base grade are run-flats, while everything else gets a repair kit for roadside emergencies.

If you want to tow, the good news is that all X3 variants can do so. But you will need to purchase the $2200 towing package which enables the X3 to haul a trailer weighing up to 2000kg with a maximum tow-ball down-weight of 200kg.

The new X3 range kicks off with three distinct models. There’s the entry-level 20 xDrive at $86,100, the 30e xDrive at $104,100 and the big-hitting M50 xDrive at $128,900, all before on-road costs.

Both the 20 xDrive and the M50 xDrive feature a 48-volt mild hybrid driveline, while the 30e xDrive goes all the way with a plug-in hybrid (PHEV) layout. All variants also feature BMW’s permanent all-wheel-drive system.

BMW claims greater standard equipment than ever before, and even the entry-level 20 xDrive has plenty of kit including 19-inch alloy wheels, tri-zone climate-control, the virtual cockpit screens with a curved central info screen, a six-speaker, 100-Watt stereo, acoustic glass, auto headlights, an auto tailgate, keyless entry and start, digital radio, powered and heated front seats, wireless Apple CarPlay and Android Auto and wireless phone charging.

The PHEV model adds 20-inch alloys, the M Sport package including blue brake calipers, and a leather steering wheel, as well as the Comfort Package which adds heated seats for the second row of outer seats, a roller sun-blind for each rear-side window, ventilated seats, a heated steering wheel, tinted glass and a luggage net. The 30e also gets parking assistant, a panoramic sunroof (a non-opening one), and a surround camera system.

Move up to the M50 variant, and you’re in for no-cost metallic paint, 21-inch alloys, a 15-speaker stereo, quad exhaust tips, M-specific details such as the mirror caps and aero add-ons. You also get a range of kit as standard that comes as an extra-cost option on the other two variants. Those include the enhancement pack that includes an alarm system, surround sound, M Sport Pro Package (various trim highlights, red brake calipers, M seat belts) and the Comfort Package that is also standard on the 30e.

The value headline is that, compared with the previous model, some variants of the new car are actually cheaper on an apples-with-apples basis. The base model car in its previous form was, by the time you added the now-standard M Sport package, dearer at $88,100, and the previous 30e optioned to include the standard kit the new car has, (heated rear seat, acoustic glass, roller blinds and more) was also (much) more expensive at $111,800. And although the M50 model in its previous guise was slightly cheaper at $126,800, it lacked the hybrid driveline, metallic paint and M Sport Pro package the new car has as standard.

The Solterra AWD has dual electric motors producing a combined 160kW for power and 337Nm of torque. It’s got enough grunt to be fun and zippy, even on the open road, but isn’t as powerful as some of its dual-motored rivals. 

For example, the Kia EV6 GT-Line produces 239kW/605Nm, which looks almost indecent compared to the Solterra's specs.

Hybrid tech across the board is the key phrase here, with the base-model 20 xDrive fitted with a mild hybrid electric motor and battery pack that works in conjunction with the 2.0-litre, turbocharged petrol four-cylinder engine. Power is 140kW and torque 310Nm. Like most mild hybrids, the electric motor offers power regeneration during braking, a mellow (by EV standards) kick in the pants during take-off and acceleration and also acts as the car’s starter motor.

The performance flagship, the M50 xDrive taps into the same technical philosophy with a mild hybrid augmenting the turbocharged six-cylinder inline petrol engine. In this case, however, peak power is a hefty 293kW and torque maxes out at 580Nm.

The most technically adventurous X3 is the 30e xDrive which uses plug-in hybrid tech to offer a claimed 91km of electric driving, about twice that offered by the original X3 PHEV it replaces. When the same 2.0-litre four-cylinder petrol as fitted to the 20 xDrive, and the electric motor are humming along together, there’s 220kW of power and 450Nm for the taking. The PHEV X3 can run in purely electric mode at up to a claimed 140km/h.

All variants use BMW’s familiar eight-speed automatic transmission and in each case, drive is sent to all four wheels on a permanent basis. Interestingly, the 30e and M50 versions package their electric motor as part of the engine-transmission combination. The 20, meanwhile, places its electric motor externally, as part of the drive-belt rotating assembly.

The M50 model has an M button that unleashes the full performance with one touch, and features an electronically locking rear differential in the interests of high-speed turn-in.

Adaptive suspension that varies the degree of damping is also part of the package on each X3 variant.

The benefit of motors which aren't 'performance' grade means you win out eventually with energy consumption and its here the Solterra AWD shines.

The official combined cycle energy consumption figure is a low 14.1kWh/100km and I averaged 15.2kWh after a week of mostly urban driving.

The consumption is fantastic but the official driving range from the large 71.4kWh lithium-ion battery is only up to 414km (WLTP), which, again, is lower than most of its rivals by a good portion. I would have range anxiety on a longer journey.

The Solterra has a Type 2 CCS charging port which means you can benefit from faster DC charging speeds (up to 150kW on DC power).

On a 150kW DC system you can go from 0-80 per cent in just 30 minutes. 

On a 7.0kW AC power charger, you can go from 0-100 per cent in 9.5-hours and that drops to 6.5 hours on an 11kW system. Which isn’t as fast as it you might like but still makes it worthwhile plugging in while you're frequently the local shops.

As you might expect, the PHEV 30e model is the efficiency superstar of the X3 line-up with an official combined test figure of just 1.6 litres per 100km and 38 grams of CO2 per kilometre. The four-cylinder 20 xDrive is not bad for its size at 7.5L/100km (and 171g), yet the bruising six-cylinder M50 version with all that performance is not too far behind with an official figure of 8.2L/100km (187g).

The 30e PHEV features a selectable battery-saving mode as well as the option of forcing EV-only running. It features a 19.7kWh battery and BMW claims it can charge using a three-phase, 11kW socket from empty to full in two hours, 15 minutes. It does not make use of fast-chargers.

Exactly how far you’ll travel in the PHEV model will depend hugely on how and where you drive. On long, open road journeys, fuel consumption won’t be much different to the others, but with just a 50-litre fuel tank, it’s range won’t be stellar. But in urban running where the batteries are being recharged for free as you brake, the difference will be significant. Meanwhile, with a 65-litre fuel tank in the mild hybrid grades, the theoretical range (based on the official fuel number) is 865km and 765km for the 20 and M50 respectively.

While BMW recommends premium fuel for maximum efficiency, it also says that each X3 variant will not be harmed by the use of standard ULP if that’s all you can get hold of.

The Solterra underlines in bold everything you would expect from a Subaru. The power delivery is well balanced, it grips the road and the handling is comfortable.

Even when cornering there’s not a lot of passenger movement and the steering is on the right side of firm. Manoeuvring is nimble and fun thanks to an the 11.2-metre turning circle that also makes it easy to park.

The 360-degree camera system is top notch and you get great visibility out of the windows. Being only 4690mm in length and 1650mm tall even the smallest city carparks shouldn't daunt you.

The ride comfort is very good with suspension that absorbs the bumps well enough that they don’t bother you. There is a little road noise but not enough to annoy and overall the ride is refined.

Big heavy SUVS like this one haven’t always been too dainty on their feet. The extra bulk and height mean suspension has to be firmer, the big wheels and subsequent loss of tyre sidewall depth plays against ride quality and before you know it, the compromises have piled up and the driving experience has gone to hell.

This time, however, BMW’s claim that the X3 was designed from the start as an SUV and not converted from a sedan platform seems to hold water. There’s an overall greater sense of cohesion in the way the car steers and flows through corners and faster bends. The steering feel and feedback are a big part of that, too, and the whole seems at least as great as its parts.

The M50 is, predictably, a rocket with loads of accessible acceleration and a great noise while you’re enjoying it. That said, the 21-inch wheels and tyres don’t do anything for ride quality, but it remains an entertaining performance car in a familiar, ICE kind of way.

The plug-in is also perky with its 220kW on tap, but it’s less old-school and more techy. And while you can’t pick the point at which ICE hands over to electric and vice-versa, sensitive drivers will absolutely know that there’s a big dollop of electrical assistance when your right foot starts asking the tough questions. It definitely feels more overtly hybrid, though that shouldn’t be any kind of surprise, purely because that’s precisely the case.

Which brings us to the 20 entry-level grade. And while it’s going to be a controversial statement, this emerges as the most cohesive, rounded variant of the new X3. There’s something in the way the fizzy, bubbly (but very smooth) 2.0-litre four-cylinder provides more than enough urge, but never threatens to dominate the dynamics.

With less weight over the front wheels than the M50, and less weight overall than the PHEV, the 20 corners flatter, steers more intuitively and is simply more fun more of the time. Even on the optional 20-inch tyres, it rides better than the others, too, and might even be better again with the standard 19s other than the fact that those are run flats and we didn’t get try them.

The X3 – not too surprisingly – runs to all the latest driver assistance programs starting with autonomous emergency braking (AEB) that can identify pedestrians and cyclists. There’s also front collision warning, lane departure warning, parking assistant and a surround camera system. There’s also lane-keeping assistance which is calibrated perfectly and should be the standard for this type of otherwise intrusive technology.

You’ll also find front and rear cross-traffic warning, adaptive cruise control and tyre pressure monitoring.

The X3 hasn’t been ANCAP tested and there’s no real likelihood of that happening in the future.

The Solterra comes with a usual warranty term of five-years/unlimited km and the battery is covered by an eight-year or up to 160,000km warranty term.

However, one of the best things about the Solterra has to be the free servicing (yes, you read that right) for five years or up to 75,000km.

Servicing intervals are more in line with a fuel-based car at every 12 months or 15,000km. But, hey, free is free!

BMW’s warranty on the X3 is the company’s usual five-year/unlimited kilometre deal. But in this case, there’s also a six-year/100,000km warranty on the high-voltage battery.

Also typical for BMW is the service interval which is not a set time or distance and instead is determined by how the car has been used. It’s called condition-based servicing and it’s nothing new at BMW.

There’s also capped-price servicing available. For the X3, the five-year/80,000km service package is $2475.