Denza B5 vs Mazda MX-30

What's the difference?

The Denza B5 Leopard PHEV is an impressive five-seat premium-style 4WD wagon: it’s reasonably nice to drive, it’s comfortable and it’s a capable 4WD and word on the tracks is that a new software update is set to make it even more of an effective off-roader.

It doesn’t offer the level of fuel economy you’d hope for, and there are issues with elements of its driver-assist tech suite – some of which are jarring and over-reactive – but the B5 looks and feels like a premium 4WD and represents decent value for money, especially when cross-shopped against something like a new-generation Prado.

The MX-30 is a tough one to give you a clear verdict on. In summary, though, the math just doesn’t add up. This car is way too expensive and offers next to no range for Australia’s vast intercity distances, essentially resigning buyers to a life within city limits.

On the other hand, I love the design ethos of this little SUV. It’s truly a statement, and it’s rare to find a car that is so committed to its uniqueness. It’s also easily one of the best EVs to drive right now, so those who understand its compromises will no doubt be left with smiles on their faces.

It’s easy to immediately pick up on the B5’s plethora of design cues: it wears with pride its old-school 4WD influences – not the least of which is its blocky, straight-up-and-down profile – mixed in new-gen looks.

All-round this 4WD wagon might be considered an affectionate homage to the likes of the Toyota Prado (aka 250 Series).

The B5 sports roof rails, a sunroof and 20-inch alloy wheels.

Whatever you see when you look at the B5, at least it’s not generic or boring.

And that non-boring impression continues inside…

The B5’s interior is premium-looking and -feeling and it also features quirky touches, such as the crystal-look buttons including a ruby-red start-stop button, and enough leather-accented surfaces and brushed-metal-type sections to keep you intrigued.

Though the dash may be a confusion of buttons and controls, on- and off-screen, the whole she-bang is superficially impressive.

Case in point: the auto shifter lowers and self-stows away in the centre console when the car is switched off and rises for use when the car is switched on. Neat.

It’s on a par in design terms with rivals, such as the Prado.

The MX-30 oozes design. I would go so far as to say this car is more focused on being a design statement than it is an SUV (as evidenced by its lack of practicality…) or an EV (as evidenced by its lack of range…).

Mazda’s Kodo design language is already eye-grabbing, so it’s to the MX-30’s credit that it manages to be striking, even against other members of the Mazda family, as it strays from a well-refined formula.

The large grille has been dumped in favour of something much smaller but the 3D effect of the Kodo face still persists. The light clusters adopt their own personality - they're inspired by the Mazda3, arguably, but they stand on their own.

The side profile, squat dimensions, and contrasting panel work (in our car’s case, a matte grey against the brand’s signature ‘Soul Red’) alert you to the fact that the MX-30 is something quite different indeed. And all this is before you notice the fact that it has clamshell rear doors.

Yep, that’s right, the MX-30 reaches into the brand’s history and brings back the outward folding door design once seen on the RX-8 rotary sports coupe. Opening it up is an event, and those doors wow onlookers with their unusual unfurling. Unfortunately, it’s not as smart as it looks, but we’ll get to that in the practicality part of this review.

The inside again blends familiar Mazda themes with entirely new ones. The material design is incredible. For the first time in a long time, I felt like a kid in some kind of tactile science museum, prodding, squeezing, and scratching at this car’s many interior elements to see if they were, in fact, made of the occasionally unbelievable materials they seem to be.

It doesn’t disappoint. Yes, the door cards really have a splash of an odd grey carpet material, very Volvo, the seats are really trimmed in some sort of synthetic leather, the quality grain of which has to be felt to be understood (it's very Mercedes), and the centre console is really made of recycled cork panelling, which is very BMW.

All of this might sound a bit silly (and the cork stuff perhaps is) but along with the stepped centre console design, weird semi-digital dash cluster and familiar bits out of other Mazdas, it is difficult to not enjoy being in such a creative and unusual space.

The commitment to this funky, unusual design, has some major practicality drawbacks, which we’ll take a look at next.

The B5’s cabin is plush, spacious, and comfortable.

The driver’s seat is eight-way power adjustable (plus four-way adjustable lumbar support), while the front passenger seat is six-way power adjustable.

As mentioned earlier, all seats are Nappa leather-accented.

The B5’s luxury-style interior, also as mentioned, includes nifty touches, such as crystal-look buttons being the most obvious, and an auto shifter auto that stows away in the centre console when the car is switched off and rises, ready for use, when the car is switched on. 

Elsewhere the dash and centre console is, at first, a confusion of buttons and controls, on-screen and off. But you soon get sort of used to all of it.

The second row is a 60:40 split-fold split and it has a flip-down control console rather than a basic centre armrest with cupholders.

The rear cargo area has four tie-down points and volume is listed as 470L (with the second row up and in use) and 1064 litres with the second row stowed away.

Put simply, the MX-30 is about as practical as a sports coupe, which is a feat given it has the footprint and height of an SUV.

It starts with those clamshell doors. Sure, they look amazing, but they’re annoying to open because the handle is on the inside, so you have to open the front doors before you can open the rear ones. At best this costs you time when you’re just trying to load objects, pets, or kids, at worst it makes the rear of the cabin nearly impossible to access in a tight car park.

Even in my unit parking spot, I could barely access the rear seats, making it especially annoying when I just wanted to chuck a bag in the rear footwell.

Even if you don’t have trouble getting an adult back there, space is limited. Behind my own driving position, my knees were up against the seat in front, and while I had plenty of headroom, it feels a bit claustrophobic, thanks to the tiny windows and high beltline.

I’ll hand some credit to the commitment to this car’s design, though, the odd carpet trims continue into the rear doors, and there's even a plush padded surface for your elbows on either side. Nice touch. The seats also feel unusually low and sporty for an SUV, particularly an electric one.

As if it couldn’t be more clear that this car has the intention of being some sort of sports coupe, the front seats are lovely. Comfortable, supportive, and with plenty of soft trims throughout the cabin, I felt as though I had plenty of room here. The raised console design means the multimedia functions and toggles were easy to reach and use, and while the climate functions are somewhat awkwardly placed on a touch panel, at least they were set and forget most of the time.

There’s a tactile dial for volume control, and although the multimedia interface is dial-based rather than touch, Mazda’s system is one of the easiest to use once you get used to it.

There’s a large storage area under the centre console, hosting two USB ports and a household power outlet, and atop that there’s a cork-finished tray, which flips up to reveal dual bottle holders in the centre. Behind this there’s a small armrest console box, trimmed in the same plush padding as the doors and seats. Front occupants can also make use of small pockets in the doors and a glovebox.

Unlike some electric cars, the MX-30 doesn’t score a ‘frunk’, which seems like a wasted opportunity because the engine bay is half empty. Serviceable items look incredibly easy to access because of this, with liquid tanks and coolant hoses on display, but I can’t help but feeling Mazda could have put a small storage space here with some packaging trickery. It’s equally possible that there’s a crash-safety consideration, however.

Moving to the boot, and unfortunately there’s a small-hatch-sized 311 litres on offer, because there’s also next to no underfloor space, and you’ll have to store your charging cables in there, too, further reducing the space. With the cable bags strapped in place, the boot fit our largest (124L) CarsGuide travel case with little extra room to spare. It’s weekender luggage space at best, but then I suppose you won’t be able to go away for long with the range on offer anyway…

The price and features equation for electric cars is somewhat different from the status quo of their combustion equivalents. You can’t just consider standard spec inclusions, there’s a need to factor in range and charging capability, too, as battery capacity and AC to DC charging converters can have a dramatic effect on the cost.

Frustratingly for Mazda’s EV offering, the sums don’t add up as neatly as I’d like them to. The MX-30 EV is available in one top-spec trim, the E35 Astina, which wears a before-on-roads cost (MSRP) of $65,490.

This places it in the same league as the Hyundai Kona electric Highlander ($66,000), Kia Niro EV S ($67,490), and Tesla Model 3 Standard Range + which just had a significant price cut ($59,900).

To make things worse for our fledging Mazda EV, it has a WLTP-rated range of just 200km (or 225km using the ADR method)! There’s no two ways about it; this is pitiful in the face of the aforementioned rivals, all of which offer ranges in excess of 420km when measured against the same standard. Even the much cheaper base-model Nissan Leaf ($49,990) offers 270km of range.

You can’t not factor this in with an EV purchase, particularly in Australia where grand distances between cities essentially rules out any intercity trips for the MX-30 EV.

The brand is hoping this car’s funky and innovative design cues, which we’ll talk about in the next part of this review, will win the hearts of city-slickers, but the MX-30 is not lacking on the standard equipment front, either.

Stuff you’ll get out of the box includes 18-inch alloy wheels, an 8.8-inch multimedia screen (which, like this car’s CX-30 and Mazda3 siblings is a non-touch unit, controlled through a central dial), Apple CarPlay and Android Auto connectivity, a 7.0-inch semi-digital dash cluster, Bose 12-speaker premium audio, built-in sat-nav, head-up display, semi leather synthetic interior trim, full LED exterior lighting, a holographic head-up display, single-zone climate control with its own 7.0-inch touch panel controller, heated front seats, as well as keyless entry with push-start ignition.

The MX-30 has some unique interior materials, and I’m not sure why more EVs don’t have a full-size domestic power socket, as this car does under the centre console at the front. Handy for when you need to charge household devices larger than a phone on-the-go (hair-curling tongs perhaps?). There are a few spec omissions, however. Dual-zone climate, power seat adjust, and a wireless phone charger are chief among the missing.

The B5 has a 1.5-litre turbocharged four-cylinder petrol engine, a 31.8kWh battery and an electric motor on each axle (front: 200kW/360Nm, rear: 285kW/400Nm) – and that combination all-up produces total outputs of 400kW and 760Nm.

The Leopard has a CVT, low-range 4WD gearing, as well as a front and rear diff lock.

The Denza B5 has 16 selectable drive modes: daily drive modes (Comfort, Eco and Sport), as well as terrain modes (Snow, Sand, Mud, Mountain, Rock, Intelligent, Creep, Wading, Sport+, Custom, Burst, Climbing, Tug-of-War (towing), L Function (low-range 4WD), and Leopard Turn, which is the B5’s equivalent of the Tank Turn, where it brakes the inside rear wheel during tight, low-speed off-road turns, reducing the turning radius, and so enabling the B5 to navigate a particularly tight turn.

The MX-30 has an electric motor on the front axle with a single-speed reduction-gear transmission. It produces low-sounding figures of 107kW and 271Nm of torque, which is less than most of its rivals, although it has more power and less torque than the equivalently sized (but much cheaper) MG ZS EV.

Although these power figures don’t look as impressive as rivals, it’s worth remembering that the MX-30 has much less weight to carry around, so when it comes to driving it’s a much better story than it appears. More on that later.

The MX-30 offers three levels of regenerative braking, controlled through the wheel-mounted paddle-shifters, a necessary touch, and one that offers decent feedback on how your driving style is affecting range, via the dash and multimedia screen.

The 31.8kWh battery provides up to 100km of electric-only driving and supports 100kW DC fast-charging.

Official combined fuel consumption is 3.9L/100km and the B5 runs on regular unleaded fuel (91).

Official fuel consumption is 10.9L/100km when state of charge is lower than 25 per cent.

On this test, I recorded 10.2L/100km.

The B5 has a 83-litre fuel tank so, going by my fuel figures, you could expect a total driving range of about 900km out of a full tank and a full charge.
 

The MX-30 has some advantages here, in that its tiny (35.5kWh to be precise) lithium-ion battery pack means it charges up pretty quickly. The downside? It’s not as quick as it could be, and its efficiency leaves a little to be desired.

As already discussed at length, this small battery means a very short range – between 200 and 224km depending on which standard you want to go by, and the MX-30 is claimed to consume 18.5kWh of energy on the combined cycle.

This is disappointing because not only is the claim higher than rivals like the Kona electric and Nissan Leaf, but in reality, I couldn’t best it with predominantly city driving, as I have previously been able to in all its rivals. Over some 250km of testing I managed a dash-reported 18.9kWh/100km.

The MX-30 EV takes a European-standard Type 2 CCS charger, the most popular kind in Australia, and will charge up at a rate of 50kW on DC or 6.6kW on AC.

It would have been nice to see that boosted to at least 7.2kW AC to be a bit more competitive on AC charging speed. For a car that will need to be charged frequently, even a 10-minute difference in charging time is important. While 50kW DC is about right for a battery pack this size, I assume there will be cooling issues pushing that to 100kW+ as the Hyundai Kona electric and Tesla Model 3 with nearly twice the battery size are capable of.

Mazda estimates a charge time of 36 minutes on DC, three hours on a three-phase AC charger, or nine hours from a ~2.4kW wall outlet. I charged my MX-30 a single time before returning it, from about 10 – 80 per cent, with it maxing out at around 50kW. It charged in less than 40 minutes, however, as promised.

The B5 Leopard is 4921mm long (with a 2800mm wheelbase), 1970mm wide, 1930mm high. It has a listed kerb weight of 3007kg and a 11.8m turning circle. 

Yep, so it’s not insubstantial. But it doesn’t feel unwieldy to drive.

On road, there’s a lot to like about the B5: it's comfortable, refined and composed and it has such a premium feel about it that it really is a top spot in which to spend a lot of time, on road trips, day-to-day driving or long road trips – it's very impressive.

Denza reckons the B5 is capable of doing the 0-100km/h sprint in 4.8 seconds but, while I did admittedly check out the B5’s impressive acceleration in short bursts, I didn’t try to prove or disprove that 0-100km/h claim.

On dirt tracks the B5’s suspension – double wishbone independent and coil springs – yields a firm and jittery ride over minor irregularities in the track but otherwise it’s mostly controlled

Off-road, the separate body-on-ladder chassis B5 has up its metal sleeve an effective combination of mechanical low-range 4WD on the rear axle, electronic torque vectoring at front, diff locks front and rear, and well-calibrated off-road traction control.

This plug-in hybrid optimises a combination of driver-assist technology – including 16 drive modes with the bulk of those designed for off-road scenarios – and with nicely dialled-in off-road traction control and mechanical diff locks on-board it is formidable in most off-road situations.

In action, all of those modes adjust vehicle systems, throttle, and engine output to give the driver the best chance possible of getting safely through every off-road challenge.

And it does a bloody good job of it. 

The B5 tackled our steep rock-step test with ease there's plenty of torque available and again that off-road traction control system is well calibrated, sharp and precise in its application.

Off-road angles on this vehicle are also on the right side of good and the fact that the Leopard has hydraulic-adjustable suspension to suit each driving mode is also a handy feature because you can maximise those off-road angles – approach, departure and ramp-over – as well as ground clearance.

In fact, you can set ground clearance anywhere between 220mm and 310mm and that means you have greater flexibility in terms of what you can drive, how you can drive, how severe an obstacle you can tackle and how safe you are while doing that.

This plug-in hybrid works through a continuously variable transmission (CVT) and it works well in this vehicle, in this package. It's clever, smooth and seamless in its operation 

Another bonus is the B5’s off-road/360-degree cameras, which actually offer a decent image rather than the muddy, fish-eye view of some other on-board camera systems.

Now for the flaws.

There’s little to no wheel travel; there’s not a lot of stretch to those wheels when the height-adjustable suspension is maxed out at its top point – in Crawl mode – so you are sacrificing that. 

The B5’s tyres (Pirelli Scorpion Elect SUV tyres – 275/55R20) are marketed as “all weather” tyres but they're not suited to four-wheel driving of any great difficulty.

If you’re thinking about using your B5 as an off-road tourer, get rid of the showroom-standard tyres and replace them with more aggressive all-terrains. 

Payload in the Leopard is 490kg (600kg in the standard B5).

In terms of towing capacity: the B5 Leopard is rated to tow 750kg unbraked, and 3000kg braked. GVM is 3497kg, while GCM is 6232kg.

The B5 is a very effective 4WD wagon: smooth and comfortably capable.

There are some issues with the driver-assist tech, but that's mostly limited to its on-road behaviour – it can be intrusive and preemptive in its application – but the driver-assist tech, which relates to off-road performance, is impressive. 

We eagerly await a full-blown software update that will further improve the B5’s off-road efficacy.

Usually, it’s easier here to talk about how electric cars are different from their combustion counterparts, or how they are great for an electric car. In the case of the MX-30, however, it’s just a great car to drive.

I’ll admit, I didn’t expect this little EV to match, much less exceed the driving experience of its CX-30 sibling, but it was a pleasant surprise to find out how great it was.

It turns out that having a much smaller battery, and therefore a much lower kerb weight than most EVs, means the MX-30 feels light, agile, and rapid compared to all of its rivals, which goes some way to making up for its lesser outputs.

In fact, I had no trouble with the motor at all, with the MX-30 feeling faster and more responsive than the Hyundai Kona electric or the Kia Niro EV.

Mazda’s handling prowess is also on full show here, with the smooth and accurate steering allowing me to point this little SUV with remarkable accuracy. The steering tune is lighter than the Kona electric, but a bit more significant than the Kia Niro's. It emboldens you to have a bit of fun, and again, unlike rivals, Mazda’s suspension tune has your back.

It’s sporty enough to engage you, but not so firm that it sends tremors through the cabin, an impressive feat considering it has a less complex torsion bar rear. If anyone had asked me, I would have sworn it was multi-link all-round.

The whole experience feels very similar to helming the CX-30 or Mazda3, but I’d even say the MX-30 feels better over the front end, with less rough rebound than its siblings.

It also makes a cool noise. Mazda have given the MX-30 an artificial tone, plumbed through the speakers, and unlike the science-fiction hum generated by the Hyundai group EVs, the Mazda’s is a warm drone, more reminiscent of a combustion engine.

To be clear here, the MX-30 is no Tesla Model 3. That car is seriously rapid, with mind-bending handling, although I will say there’s a certain poise and refinement to the way the Mazda drives. Even in the corners, it’s confidence inspiring, with the torque-vectoring magic built into the electric motor on full show.

Perhaps one of the reasons that this car is a tad less efficient than its rivals is its lack of weight, which would allow more energy to be fed back into the battery during regenerative braking. Or perhaps its regen braking modes are a bit too forgiving, either way it’s nice that the Mazda offers three easily controllable levels via the paddle-shifters. I even became a fan of the quaint analogue power dial, even if it does give you a bit less feedback than the sleek software suites in Hyundai Group or Tesla offerings.

The MX-30, then, hits an unexpected niche. The benefits of its smaller battery pack and a focus on handling make this car one of the best EVs to drive today, even if you’re restricted to city limits, and regular recharging.

Like all recently launched Mazdas, the MX-30 is packed full of advanced ‘i-Activesense’ safety gear. In terms of cutting-edge items, this includes freeway-speed auto emergency braking, now with low-speed intersection assist as well as pedestrian and cyclist detection, lane-keep assist with lane-departure warning, blind-spot monitoring with active intervention, as well as front and rear cross traffic alert, with rear emergency braking.

The MX-30 also has the expected suite of electronic assistance but goes further to include torque vectoring and has a total of 10 airbags – a lot for a very small cabin. It also comes packed standard with front and rear parking sensors, as well as a 360-degree parking camera suite. It’s amongst the best safety suites in terms of pure features in the small SUV segment.

The MX-30 has a maximum five-star ANCAP safety rating to the 2020 standards.

The Denza B5 Leopard PHEV is covered by a six-year/150,000km warranty. 

The B5’s 31.8kWh battery has an eight year/160,000km warranty.

The first service is scheduled at six months/3500km; the rest of the servicing appointments are set for every 12 months/20,000km.

Total cost is $3220 (plus GST) via five-year capped-price servicing.

That puts it on a par with more expensive rivals.

The MX-30 is covered by Mazda’s industry-standard five-year and unlimited kilometre warranty, while the battery pack is covered by a separate eight-year promise, on par with its Korean rivals. Mazda includes roadside assist for the duration of the warranty.

The EV has service intervals of 12 months or 15,000km whichever occurs first, and a five-year service plan comes in at $1273.79, working out to an average of $254.76 a year. That’s getting close to Toyota levels of cheap servicing, and so it should, given electric cars (at least in theory) have much less to attend to when it comes service time.