Mercedes-AMG E63 vs Toyota BZ4X

What's the difference?

The E 63 S fills its niche in AMG's Australian line-up perfectly. More mature than the brand's four-cylinder hatches and SUVs, but not as overbearing as some of its bigger sedan, GT and SUV stablemates. And its ability to seamlessly switch between serene comfort and dynamic performance has nailed the objective for this 2021 update.

When the bZ4X first launched it was already late to the game and blended into the background too much. However, this update has dramatically improved its appeal.

Despite this, the electric mid-size SUV segment is incredibly fierce and it’s hard to not get caught up in glitzier rivals like the BYD Sealion 7, Tesla Model Y and Zeekr 7X.

It’ll be interesting to see whether the Australian public reacts to this update and if it draws in more punters.

The E 63 S has been massaged for 2021 starting with flatter headlights, AMG's now signature 'Panamericana' grille, and a high gloss black flap across the top of the curved 'Jet Wing' section defining the lower part of the nose.

At the same time, the vents on either end of it are larger and feature twin transverse louvers to guide cooling air to wherever it's needed.

It's all about what AMG calls 'optimised aerobalance' but the form is just as appealing as the function. The characteristic 'Power Domes' in the bonnet dial up the muscle, as do the fat wheel arches (+27mm each side), and 20-inch rims with distinctive aero inserts.

This car's optional exterior carbon package consists of a front splitter, side sills, a flash near the fender badges, the exterior mirror covers, the boot lid lip spoiler, as well as the lower apron around the redesigned diffuser and quad tailpipes.

New, intricately styled LED tail-lights are also flatter, but there's even more going on inside.

A new AMG sports steering wheel features three rounded twin-spokes with new switches on the bottom to control the car's dynamic set-up.

It also picks up a new take on the small touch-sensitive controllers used to adjust the instrumentation and manage other functions like phone calls, audio and the cruise control.

Not sure I'm in love with them at this stage. In fact, the words fiddly, imprecise, and frustrating come to mind.

Nappa leather covering the superb AMG sports seats, upper dash, and door beltlines remains standard, but the show-stopper is the 'Widescreen Cockpit' - twin 12.25-inch digital screens for the MBUX multimedia interface on the left and instruments on the right.

The instrument cluster can be set to 'Modern Classic', 'Sport' and 'Supersport' displays, with specific AMG read-outs such as engine data, gear speed indicator, warm-up status, car set-up, as well as a G-meter and 'RaceTimer.'

To borrow an official automotive design term, it looks schmick. Overall, with touches like open-pore black ash wood trim, and brushed metal highlights, the interior looks efficient but classy, with an obvious attention to detail in the layout and its execution.

The exterior design of the bZ4X never really blew me away. It’s just sensible and not too out there. In saying that though, being sensible is no bad thing and can be seen as a positive for some buyers.

This facelift has brought Toyota’s new corporate look, including the hammerhead shark-like LED lighting signature. It already features on models like the C-HR, Camry and RAV4. In fact this update has made the bZ4X look more like an electric RAV4 than ever before.

I like the C-shaped daytime running lights but I’m not a fan of how the main headlight section is now separate. I prefer how they looked before.

The black wheel arch cladding is now also glossy and not matte. Sure, this looks great right now, but it likely won’t be long until it unfortunately gets scratched.

Inside, if you covered up the Toyota badge you could likely fool me into thinking this is a Lexus. The new 14.0-inch touchscreen is virtually identical to the one in models like the Lexus NX, RX and GX.

There are also plenty of premium-feeling soft-touch materials around the cabin. I’m not a huge fan of the grey and white two-tone interior, at least from a family-friendly standpoint, but thankfully you can get an all-black interior instead.

Another major design change with the interior is the new centre console. It now features two wireless chargers and a revised button layout. I particularly like it because it’s no longer covered in glossy piano black.

At just under 5.0m end-to-end the E-Class sits in the upper range of the mid-size luxury spectrum. And almost 3.0m of that is accounted for by the distance between the axles, so there's plenty of space inside.

The driver and front passenger are provided with heaps of room to breathe, and there's a surprising amount of space for those in the back as well.

Sitting behind the driver's seat set for my 183cm (6'0”) position I had more than adequate head and legroom. But access to and from the back is a struggle for full-size adults.

The rear doors open out a long way, but the limiting factor is the size of the aperture, necessitating excessive contortion of the head and limbs to fold in and out of the car.

Connectivity runs to two (power-only) USB-C sockets in the front centre storage bin, as well as another USB-C (for power and multimedia) and 12-volt power outlet in the centre console.

Speaking of the front centre storage bin, it's a decent size and has a padded split lid so it can double as an armrest. There are two cupholders in the front console, a generous glove box, as well as long door compartments with recesses for large bottles provided.

There's a pair of USB-Cs along with another 12-volt socket in the back, sitting under the climate control panel with adjustable vents in the rear of the front centre console. Nice.

The fold down centre armrest incorporates a lidded (and lined) storage box as well as two pop-out cupholders. Again, there are bins in the doors with room for smaller bottles.

The boot offers 540 litres (VDA) of volume, and is able to swallow our three-piece hard suitcase set (124L, 95L, 36L) with room to spare, or the substantial CarsGuide pram, or the largest suitcase and pram combined! There are tie-down hooks to help secure loads, too.

Don't bother looking for a spare of any description, a repair/inflator kit is your only option. And the E 63 S is a no-tow zone.

The front seats in the bZ4X are deliciously comfortable and supportive. They make long trips a breeze, plus the ventilation that’s standard on the AWD trim works well in the heat.

Despite this, I’m still not a huge fan of the driving position. You need to look over the steering wheel in order to view the almost windscreen-mounted digital instrument cluster. It’s a similar set-up to what Peugeot employs and is intended to reduce the amount you need to stray your eyes from the road.

I appreciate this but it just doesn’t work for everyone. Personally I need to jack the seat up more than I’d like in order to see the screen fully. When I do this my knees get in the way of the steering wheel no matter how I position it, which isn’t ideal.

The set-up in the related Solterra is a little better as it has a squared-off steering wheel instead of a traditional round steering wheel.

Going back to the digital instrument cluster, the content display on this is still rather limited. Thankfully, critical information like your current speed is displayed clearly, but having added customisation through more informative displays to toggle through or more themes would be a nice extra touch.

Moving across the larger touchscreen multimedia system is a welcome addition, but I didn’t think there was anything wrong with the old one. The user interface is still basic in a good way, meaning it’s hard to get lost.

A difference is the climate control features are now fully integrated into the touchscreen, save two physical dials that change the dual-zone climate control temperature.

While this means you need to press on the touchscreen to change certain climate control-related features now, a lot of these in the pre-update were touch-sensitive buttons on a panel under the touchscreen. Really, it makes no difference.

Wireless Apple CarPlay and Android Auto are still standard and work flawlessly with my iPhone 15 Pro Max. There are now also two wireless chargers, which is great if you want to charge your phone and your passenger’s phone.

However, they don’t work properly as they don’t offer any ventilation. They regularly make my phone overheat and stop charging, even on shorter trips. If you want to reliably top your phone’s battery up, it’s best to just plug into a USB port with a cable.

Looking elsewhere around the cabin, there is an adequate amount of storage, though some more would be nice. There are two decently sized cupholders, a small shelf under the centre console and a side-hinging centre console box. Like the pre-update version, there is still no proper glove box.

In the second row there’s plenty of legroom available for adults behind adults, though due to the placement of the high-voltage battery this leaves you with a knees-up feeling. This is common in a number of EVs, even some that are based on dedicated electric architectures, like the bZ4X.

Headroom also isn’t fantastic as the roof starts to taper back where your head is located. You wouldn’t want to be much taller than 180-odd centimetres back there. It’s also made worse when you recline the seat backrest.

Second-row amenities include air vents, heated outboard rear seats, USB-C ports, seatback map pockets, as well as a fold-down armrest with some cupholders and a tablet holder.

At the back there is a hands-free power tailgate which is rather slow to open and close and makes plenty of beeping while doing so. It's a classic Toyota on this front.

The bZ4X AWD offers 410L of boot space with the rear seats upright which is slightly less than the 2WD due to the added rear electric motor.

It’s a decent space but doesn’t stand out from the crowd. There’s some extra underfloor storage which is large enough to fit some cables and that’s about it. Unfortunately there’s no front boot.

Boot-related amenities include a cargo blind, a variety of hooks, as well as vehicle-to-load (V2L) capability using 220V/1500W AC inverter and a single household power socket. The latter allows you to power household appliances using the vehicle’s high-voltage battery.

Disappointingly there is no spare wheel, but this isn’t uncommon for EVs. You have to make do with a tyre repair kit, which is fine if you have a small air leak but pointless if you have a proper puncture.

There are still only two trim levels in the bZ4X line-up – 2WD and AWD, the latter on test here.

Compared to the pre-update version, pricing has been slashed by up to $10,000, depending on the variant.

The line-up now starts at $55,990, before on-road costs, for the 2WD and extends to $67,990, before on-road costs, for the AWD.

This top-spec bZ4X AWD now undercuts the corresponding Subaru Solterra AWD Touring by $2000. These two cars are twins under the skin and are built in the same Japanese facility.

It also undercuts the top-selling Tesla Model Y Long Range AWD by $1000, which is a major feat. However, certain rivals like the BYD Sealion 7 Performance and Zeekr 7X Long Range are still cheaper but not all of them offer all-wheel drive.

With this update there’s now a larger 14.0-inch multimedia touchscreen, two wireless phone chargers, vehicle-to-load (V2L) capability, plus a hands-free power tailgate and heated steering wheel standard across the line-up.

This is above and beyond the standard LED headlights, roof rails, dual-zone climate control and heated front seats with electric adjustment in the 2WD.

The AWD brings larger 20-inch alloy wheels, a panoramic glass sunroof, a nine-speaker JBL sound system, digital rear-view mirror and ventilated front seats.

This is a lot of standard equipment and you can’t really complain because you’re getting all of this for less than before.

The E 63 S is powered by the M178 version of the all-alloy 4.0-litre twin-turbo V8 engine used across numerous AMG models from the C-Class up.

Thanks in no small part to direct injection and a pair of twin-scroll turbos (located in the engine's 'hot vee' to optimise throttle response), this all-alloy unit produces 450kW (that's 612hp) from 5750-6500rpm, and 850Nm from 2500-4500rpm.

And as per standard AMG practice for its Vee engines, this car's powerplant was built from scratch by a single engineer in Affalterbach. Thank you Robin Jäger.

AMG calls the nine-speed transmission used in the E 63 S an MCT, which stands for Multi-Clutch Technology. But it's not a dual-clutch, rather a normal auto transmission using a wet clutch as opposed to a conventional torque converter, to connect it to the engine on take-off.

Drive goes to all four wheels via Merc's '4Matic+' AWD system, built around an electromechanically controlled clutch connecting the permanently driven rear axle (with locking diff) variably to the front axle.

While there have been a number of spec changes or additions with this update, even more tweaks have happened under the skin.

All versions of the bZ4X now make more power and torque. The AWD’s dual electric motor set-up now has a total system output of 252kW (+92kW) and 438Nm (+101Nm).

Like the pre-update version, the bZ4X AWD offers 'X-Mode' off-road drive modes, crawl control, as well as downhill assist control. However with 20-inch alloy wheels as standard, I doubt these will be taken off the beaten track very often, if at all.

Claimed fuel economy for the combined (ADR 81/02 - urban, extra-urban) cycle is 12.3L/100km, the E 63 S emitting 280g/km of CO2 in the process.

That's a pretty hefty number, but in line with this car's proportions and performance potential.

And Merc-AMG has gone to great lengths to minimise fuel use. As well as the standard 'Eco' stop-start function, in the 'Comfort' drive program cylinder deactivation becomes active, the system able to drop four cylinders anywhere between 1000 to 3250rpm.

There's no physical hint of half the cylinders leaving the party. The only clue is a blue icon on the dash indicating a temporary shift to V4 operation.

Despite all that effort, however, we saw a dash-indicated 17.9L/100km over a mix of urban trundling, highway cruising, and some spirited dynamic assessment.

Recommended fuel is 98 RON premium unleaded (although it'll run on 95 at a pinch), and you'll need 80 litres of it to fill the tank. That capacity translates to a range of 650km according to the factory claim, and 447km using our real world result.

Another big under-the-skin change with this update is Toyota has fitted the bZ4X line-up with a larger 74.7kWh lithium-ion battery pack.

As a result this EV has more range. The AWD now offers up to 517km of WLTP claimed range (up from 411km) with an official energy consumption figure of 16.0kWh/100km.

During my largely urban testing over the Christmas break I saw an average energy consumption of 14.4kWh/100km. In fact, on one particular trip into the city with minimal traffic I saw an average energy consumption of 10.5kWh/100km. This is incredibly low for an all-wheel drive EV and almost Tesla-like.

Using my as-tested energy consumption figure, the bZ4X AWD has a theoretical total range of 518km.

The Type 2/CCS combination charge port remains on the left-hand front wheel arch which is fine because it’s kerbside, but at some public charging stations it can be hard to connect the cable without having it run up against the front bumper.

Speaking of charging, the maximum AC charging rate has now been upped all the way from 11kW to 22kW, which is a fantastic update. This now allows for a 10 to 100 per cent charge in 3.5 hours.

While peak DC fast-charging unfortunately is still capped at 150kW, Toyota claims it can remain at a higher charge rate for longer now thanks to reworked battery thermal technology.

A fast charge from 10 to 80 per cent is now meant to take 45 minutes. It would be good to see quicker charging because many of this car’s rivals are faster and this can make a world of a difference during long road trips.

AMG's major goal with this upgrade of the E 63 S was to maintain its dynamic response and ferocious performance, but dial in the extra comfort customers had said they wanted.

So, the 4Matic+ AWD system has been fine-tuned for more smoothness as has the Comfort option in the dynamic set-up. But we'll investigate that shortly.

First, that 4.0-litre turbo V8 in the nose is claimed to slingshot this roughly 2.0-tonne sedan from 0-100km/h in just 3.4 seconds, and it feels every bit that fast.

With 850Nm available from 2500-4500rpm and nine gear ratios to help keep you operating in that Goldilocks band, mid-range thrust is monumental. And thanks to the bi-modal sports exhaust it sounds beautifully brutal.

The nine-speed auto's wet clutch, as opposed to a conventional torque converter, is designed to save weight and optimise response. And while some will tell you an auto with one input shaft is never going to be as fast as a dual-clutch with two, shifts are rapid and direct. The wheel-mounted shift paddles are larger and set lower, as well.

The AMG 'Ride Control+' suspension with multi-chamber air suspension and adaptive damping is amazingly good. The underlying set-up is by multi-links front and rear, and despite riding on big 20-inch rims wrapped with low-profile, high-performance Pirelli P Zero rubber (265/35 fr - 295/30 rr) the Comfort setting is incredibly... comfortable.

Slip into 'Sport' or 'Sport+' and the car immediately feels tauter but far less compliant and forgiving. An impression reinforced by the engine, transmission, and steering shifting to a more buttoned-down mode at the same time.

The standard dynamic engine mounts play a big part here. Able to make a soft connection for maximum comfort, but switch to a rigid link when required.

But no matter which mode you're in, the car is well damped and feels beautifully balanced in quick cornering. And the E 63 S's electro-mechanically-assisted variable-rate steering is progressive, feelsome, and accurate.

The 4Matic+ AWD system is built around an electromechanically controlled clutch connecting the permanently driven rear axle (with locking diff) variably to the front axle.

Torque distribution happens imperceptibly, the big V8 putting its power down emphatically, with various electronic systems tieing up the loose ends as you aim up for the next corner.

 There's even a 100 per cent RWD Drift mode available in the Race setting, but without a race circuit at our disposal this time around that'll have to wait for another time.

The optional ceramic brakes feature huge rotors and six-piston front calipers, and stopping power is immense. And the good news is they operate quickly but progressively at normal pottering around town speeds. No warming up required to get them in an optimal temperature zone (as can be the case with other ceramic set-ups).

The bZ4X AWD was never a slow car to begin with but the added oomph is welcome.

While it's not overtly noticeable in everyday driving, when you mash the throttle at the lights you're pinned back in the seat a lot more than before.

Despite this, it still doesn’t feel like this car wants to be driven quickly. If you drive with a docile right foot, the bZ4X is a supremely comfortable vehicle that’s relaxing and easy to drive.

There are a number of regenerative braking modes to select from by using the steering wheel-mounted paddle shifters, but none of them offer a one-pedal driving mode. This means you need to use the brake pedal to come to a complete stop.

As a result, this car’s driving experience is more like a combustion or hybrid vehicle, like the RAV4. This can make the transition to an EV easier if you’ve never driven one before.

The steering feel in the bZ4X has a noticeable weight and heft to it which feels nice when you’re zipping around on urban streets. It also feels like the steering wheel is actually connected to the wheels rather than the overly assisted and light steering systems in some of its rivals.

Where the added steering heft can feel a touch annoying is when you’re doing a tight parking manoeuvre. This car is longer than you think, meaning you may need to do three-point turns more often.

Speaking of parking, the bZ4X’s surround-view camera system is detailed and high-resolution, which is a great peace of mind. The semi-autonomous park assist is also fantastic as it can detect and park the vehicle within painted lines, rather than just slot it between two parked vehicles.

Adding to the comfort factor is this car’s ride, which is a major highlight. Despite the large 20-inch alloy wheels, the suspension does a great job at softening bigger bumps and small road imperfections.

There is little that upsets the interior ambience in this car, making it a serene place to be regardless of where you’re travelling. For an EV you’d expect more tyre and wind noise given there’s no engine to drown the noise out, but Toyota has seemingly done a great job of insulating the cabin and choosing suitable tyres.

The updated bZ4X still has a maximum five-star ANCAP safety rating based on testing conducted on the pre-update car by Euro NCAP.

Toyota has notably now made the full safety suite standard across the entire line-up. 

Previously the 2WD missed out on features like blind-spot monitoring and a surround-view camera, among others.

As standard there are eight airbags, autonomous emergency braking (AEB), rear cross-traffic alert, lane-keep assist, adaptive cruise control, driver attention monitoring and traffic sign recognition.

There’s also connected services with SOS emergency calling, plus automatic collision notification, vehicle insights and charge station search available with a smartphone companion app.

All of the safety systems operate in a seamless manner and don’t interrupt the driving experience unless they actually need to. This is becoming increasingly uncommon.

All AMG models sold in Australia are covered by Mercedes-Benz's five year/unlimited km warranty, with 24-hour roadside and accident assistance included for the duration.

Recommended service interval is 12 months or 20,000km, with pricing for a three-year (pre-paid) plan set at $4300, a $950 saving overall relative to its three year, pay-as-you-go 'Service Solutions' capped price program.

And if you're happy to fork over a little more up-front, there's a four-year service deal at $6300, and five years coming in at $7050.

As standard there is a five-year, unlimited-kilometre warranty which is fine but does not stand out for the segment anymore.

However, if you service at one of Toyota’s 260+ dealers around Australia when required, warranty coverage for the high-voltage battery can be extended all the way out to 10 years.

Logbook servicing is required every 12 months or 15,000km, whichever comes first, and the first five services are capped at $180 each. While the pricing in classic Toyota fashion is competitive, the 12 month intervals aren’t (in the EV space). The standard is now closer to 24 months.

As part of the ownership package owners get Mode 2 and Mode 3 charging cables. The 'Toyota Go' loyalty programs also allows for the choice of a complimentary 7.0kW home charger or 12-month Chargefox subscription.