2022 BMW M4 vs 2020 Toyota Granvia

What's the difference?

We cannot think of a faster or more invigorating four-seater luxury convertible for the money than the new M4 Competition.

Finally, after years of devastatingly fast droptops with remote steering and an unforgiving ride, the G83 generation discovers refinement and sophistication to go with its supersonic speed.

There’s terrific talent on tap here that no rival can even come close to right now. BMW is on a roll and this is the first M4 convertible that can sit proudly alongside the best of its classic M3 ancestors.

The Granvia VX is great at being plush, comfortable and easy to drive, but it's not as practical as a people mover should be. And while the engine provides a great driving experience, you'll be filling up the tank often if your trips are mainly urban and city focused.

Hallelujah! The unloved folding hardtop is history and fabric is back in fashion in a BMW 3/4 Series-based convertible for the first time since the demise of the E46 convertible in 2006.

It improves the proportions and aesthetics out of sight while remaining superbly insulated. It’s also 40 per cent lighter to boot while liberating 80 litres of extra luggage space.

The roof requires just 18 seconds to drop away or erect again, and can be done so at speeds of up to 50km/h. And it looks great, with a taut fit that suits the BMW’s lithe lines to a tee. With all four windows dropped, it also does a fab impression of an American-style pillarless hardtop.

Roof up or down, the M4’s muscular styling has a tense sparseness to it that means business, reinforced by that oversized, M-specific kidney grille treatment that, admittedly, isn’t as divisive in real life. The smiley LED light wave out back also brings a friendlier tone, harmonising handsomely with the rest of the car.

This is probably the best-looking BMW convertible since the beautiful E46 era.

The Granvia is a new-generation people mover based on the Toyota HiAce commercial van and arrived in Australia in 2019. The resemblance to the HiAce is obvious although dressed up in its Granvia clothes it's a handsome and professional looking little bus.

I'm a fan of the protruding nose (which helped it earn the five-star ANCAP rating, see more on safety below) and I even like its big, shiny Transformer face and the 'L-shaped' tail-lights which aren't to everybody's taste.

Also, when I say little bus that's only in comparison to actual buses, like the one I convinced people not to get on in my video. Compared to a seven-seater SUV such as the Kia Sorento or Toyota Kluger, the Granvia is enormous.

Look at the dimensions. The Granvia is 5300mm long, 1990mm tall (not counting the aerial) and 1970mm wide, not counting the wing mirrors (which can be folded in).

While the length was hardly ever a problem for me while driving it over the week, the height saw me just make it under the 2.0m clearance in our underground carpark and I had to fold the aerial down to do it. Beware, many carparks have a max headroom of just 1.9m.

The cabin of the VX is impressively plush from the quilted leather reclining second-row seats to the 'woodgrain-look' trim throughout.

During my test I played bus driver to a number of passengers (no, seriously I picked up random strangers off the side of the road – see the video) and all were impressed by the Granvia's premium-feeling interior.

The M4 Convertible is not a paragon of space efficiency, given its footprint.

At nearly 4.8 metres long and 1.9m wide, the M4 Convertible casts a sizeable shadow on the road, which only really pays dividends for front-seat occupants inside.

Ours was fitted with a very handsome pair of $7500, two-tone M Carbon bucket seats up front, a sort of futuristic tombstone design with a fixed headrest that looks like they were created by and for Stormtroopers; they do provide all the electronic adjustability one would need in terms of fore/aft, up/down and lumbar support movement.

But, unless you really need their g-force-bracing support and love their outrageous appearance, they are monumentally obstructive to effortless entry/egress and overall hip comfort if you don’t possess a gymnast’s physique. In fact, at times, they can feel downright torturous, especially in the gusset area due to the pointless (ironically) hard central bulge bit. The standard front seat set-up is perfectly fine, offering all the comfort and support expected in a luxury convertible, with the added bonus of headrest adjustability.

As with all G20/G80 generation 3/4 Series, the M4’s interior is a welcome return to form for BMW, from the excellent driving position and superb build quality, to thoughtful switchgear placement, brilliant ventilation and ample storage. And iDrive is probably the best and most intuitive multimedia system out there, too, needing no special skill or distraction once mastered.

A quick note about the instrumentation. The 4 Series design digital readouts are prettier than the standard 3 Series' ugly standard screen that looks ex-Honda Civic. This one offers alternative views and is easy to read at a glance. But it still makes us pine for good old analogue dials. Remember when BMWs were the world leaders in dial design?

Some familiarisation is also required to figure out the M part of the M4, including the various driving and performance modes; they’re divided into Road, Sport and Track settings. Yet, thankfully, they’re all far simpler to get your head round than before, which required too much fiddly concentration, since – once quickly learnt – everything is possible with eyes-on-the-road promptness. A new M Mode button offers pre-determined shortcuts to whichever drive combinations are desired.

The roof is well insulated, meaning that previous-gen folding hardtop-owning prospective buyers shouldn’t be too sad about the fabric above their heads. On the go, front occupants can enjoy a variety of configurations, starting with snug coupe-style cosiness and security, moving to cool pillarless hardtop-style windows-only down cruising, to the full top-down convertible glory. The latter also brings minimal buffeting at speed unless you’re stuck out in the back. Roof-up vision isn't brilliant, though.

Strangely, with the M Carbon bucket seat options ticked, it’s actually easier for some people to get into the back than the front. Pulling a strap sees the front bucket seats (slowly) whir as far forward as possible to allow sufficient room for people to clamber onto the rear seats.

Once sat, it’s clear that longer-legged people will struggle. Knee room is OK (especially if the front occupants are feeling sympathetic by moving their seats forward), there’s surprisingly adequate head room for your 178cm tester when slightly slouched, big feet can be tucked beneath the front seats and scalps never have to touch the rear glass thankfully.

And at least BMW has tried to make life back there comfier for smaller people, due to rear-facing air vents with climate and directional control, two USB-C ports, a pair of cupholders, a centre armrest and some handy storage. The materials are of a high quality construction, too.

However, the fixed back rest is far too upright, the knees-up posture quickly gets tiresome, the cushion is firm and you’re sat on a slight angle pointing outwards. Claustrophobics won't be too happy either. Annoyingly there aren’t side window buttons either, meaning only the driver can lower or raise them. The two-seater back seat is best saved for short trips or kids.

Happily, once the roof is dropped, the hemmed-in feel vanishes, there’s not too much wind intrusion or buffeting with the side windows up and there’s a sense of shared freedom that only a four-seater convertible can bring. Going the full drop-top experience will ruffle more than hairdos at freeway speeds, though. An optional wind deflector can fix that issue for front-seat occupants, but it goes over the back seats, turning the M4 into a two-seater ragtop.

Further back, the 300-litre boot isn’t accessible from the cabin, meaning you can’t put much inside at all. BMW fits a hinged flap that needs to be down for the roof to work since it cordons off the roof storage part of the boot when folded in; when lifted, there’s a useful amount of space for luggage, and it’s a handy rectangular shape instead of an L-shaped slot, but obviously at the cost of convertible driving. You can’t have both.

Note that, compared to the previous folding-hardtop M4, this boot is some 80L larger. 

The Granvia VX tested was an eight-seater (four rows of two seats) and being so tall and long would mean the space inside is going to be good, right? Nup. The Granvia doesn't seem to make the best use of its enormous cabin.

Seating, while undeniably comfortable and luxurious in the second and third rows, doesn't offer great legroom when you have a full load of people on board. I could only just sit behind my driving position in the second row and then behind that in the third row, but there was no way I could then fit in the fourth row.

And while cabin storage is great with the biggest centre console bin I've ever seen – I could fit my head in it (see the video) – and there are 10 cupholders, six coat hooks and a folding table, there isn't a boot or any room for cargo, not in the eight-seater (with all seats in use) I tested anyway. With all four rows in place there is only enough room for a few items no wider than a box of cereal (watch the video, to see what I mean).

Folding up the base on the fourth row seats means they can slide forward and that does free up a little bit of space for cargo, but if you are only going to be using the Granvia for six people, then my advice is to go with the six-seater and have a big boot at your disposal all of the time.

The Granvia VX is outfitted well with charging points – there are seven USB ports all the way back to the third row and two 12-volt outlets.

We'll get to what the Granvia is like to drive in a moment, but what I can say here is that the driver and passengers sit high, like looking-down-on-four-wheel-drive-utes high.

Access into the front seats is a bit of a climb up and proved tricky for my 75-year-old Dad with his gammy knee, but entry into the second-row seats was easy thanks to a wide step and a large aperture.

The small table between the second-row seats blocks the aisle, so the only way to get to the third row is by sliding the second row forward. Fourth row access is more difficult but compared to entry into the back row of most seven-seater SUVs it's a breeze.

We tested the Toyota Granvia VX eight-seater which lists for $74,990, before on-road costs, and sits at the top of the range. That said, there are only two grades in the line-up – the entry point known simply as Granvia which comes in six- ($62,990) and eight-seat ($64,990) versions and the Granvia VX which also comes in those two seating configurations and costs the same for both.

Standard features on the VX eight-seater include LED head and tail-lights, proximity unlocking, auto sliding side doors, power retractable heated wing mirrors, 17-inch alloy wheels, sun shades for all rear side windows, a 7.0-inch touchscreen with sat nav, Apple CarPlay and Android Auto, and a 12-speaker Pioneer stereo.

A special shout-out goes to the seating. Coming standard are quilted leather seats for the first, second and third rows, while the rear (fourth row) is a vinyl bench seat with a 60/40 split.

The second row consists of power adjustable ottoman style recliners - think business class airline seats, while the third row is a pair of manually adjustable captain's chairs, similar to the front seats which are power adjustable. My passengers loved the second-row seats. One even said, "I've never flown business class by I feel like I have now."

Is it good value? Well, not really. See $75K is a lot to spend on a Toyota people mover, especially considering the Tarago (which has been axed and effectively replaced by the Granvia) at its priciest is $65,261.

The top-of-the-range Kia Carnival Platinum lists for $62,790 and a Hyundai iMax Elite is even cheaper at $48,490. But the Granvia is a more premium offering, up there with the likes of the Volkswagen Multivan Highline for $79,890 or Mercedes-Benz Valente for $59,850

Here is a summary of Australian-market outputs and prices for the M3 and M4 convertible autos, with the prices in brackets being approximate inflation-adjusted figures for today.

1999 E36: 236kW/350Nm 3.2L in-line six-cylinder engine (I6), $152,000 ($266,000 in 2022); 2003 E46: 252kW/365Nm 3.2L I6, $158,000 ($240,000); 2008 E93: 309kW/400Nm 4.0L V8, $183,442 ($240,000); 2014 F83: 317kW/550Nm 3.0L twin-turbo I6, $178,430 ($202,000).  

In 2022, the G83 M4 Competition lives up to its name in more ways than one, with a 2993cc 3.0-litre double overhead cam direct-injection twin-turbo I6 known as the S58 series, which is itself derived from BMW’s B58 modular family of engines. Its 375kW is delivered at a lofty 6250rpm, while there’s a 650Nm plateau of torque between 2750rpm and 5500rpm.

A kerb weight of 1920kg means the M4’s power to weight ratio is an impressive 195.3kW/tonne, helping its published 0-100km/h time of 3.7s. For a few grand extra, the company will up the top speed by 30km/h, to 280km/h.

BMW says the engine includes cooling and oil supply systems designed for extreme lateral forces at high speeds, while the exhaust uses electrically controlled flaps for a more raucous noise.

Power is channelled to all four wheels continuously via an eight-speed M Steptronic transmission with a trio of shift programs. The AWD system features an active differential to better transmit torque to all four wheels, while drivers can choose one of three, progressively more rear-wheel drive (RWD) biased modes: 4WD, 4WD Sport and 2WD – the latter being a pure RWD set-up.

Other related changes the M4 boasts over regular 4 Series models include special stability and traction control tuning, a double-joint spring strut front axle with unique axle geometry and variable-ratio steering, a five-link rear axle featuring its own kinematics and elastokinematics, M-specific adaptive dampers, a configurable braking set-up according to feel and response, and forged M light-alloy 19-inch alloys up front and 20-inch items out back.

Choosing the AWD-only convertible over the equivalent AWD coupe adds 145kg (and 195kg compared to the RWD coupe), though this is partly offset in two ways over the preceding, folding-hardtop M4 Convertible: firstly, using the soft top drops weight by 80kg; and secondly, while the AWD system does add 50kg, it’s at a lower centre of gravity, thus naturally improving vehicle dynamics.

Which are electrifying, by the way.

The Granvia has a 2.8-litre four-cylinder turbo-diesel engine – the same one found in the Toyota HiAce van and with 130kW/450Nm I found there was more than enough grunt to handle city duties or overtaking on motorways.

Equipped with a diesel particulate filter there's a burn-off switch located near the driver's right knee. The Granvia will tell you when it's time to activate the burn-off function.

The 2.8-litre diesel is fairly quiet and responsive while the six-speed automatic shifts smoothly. There's not much to complain about in terms of the usability of the engine and transmission, they performed well – it's just that with it having to carry around a vehicle weighing nearly 2.7 tonnes fuel economy was never going to be great (you can read about this below).

We managed 12.1 litres per 100km in a mixture of urban, freeway and rural-road driving, including plenty of performance testing. This is a two-tonne M4 convertible capable of supercar speeds, after all. In that context, the economy is more than acceptable. No doubt the stop/start engine function (at idle) helps here.

For the record, the official combined-average claim for this Euro 6-rated BMW is 10.4L/100km, for a carbon dioxide emissions average of 237 grams/km. Thanks to a fuel tank that holds 59 litres of 98 RON premium unleaded petrol, it can manage an average of almost 570km between refills.

The specifications given by Toyota give the Granvia's combined fuel consumption as 8.0L/100km from the 2.8-litre four-cylinder turbo-diesel.

That sounds fantastic, but in reality after a combination of motorways and urban use the trip computer was reporting 12.9L/100km. A separate fuel test (carried out by myself) saw the Granvia use 21.4L over 127km of city and urban driving (measured at the fuel pump), which comes to 16.8L/100km.

That sounds like a lot, but it makes sense when you consider how heavy the Granvia is. It's 2660kg without anybody on board! If you're carrying eight people weighing 60kg your total mass is tipping the scales at 3140kg and your fuel economy is going to be significantly higher again. The GVM, by the way, is 3500kg.

Really, the Granvia is the perfect argument for a hybrid powertrain, because tour operators or parents ferrying their family around the city are going to want better fuel economy.

Marvellously.

Earlier, we said that the previous M4 (and some earlier M3 generations) never hit the dizzy heights the best like the E46 managed.

The reason why is bandwidth. Not WiFi bandwidth, but rather the newfound breadth of capability that the G83 model has acquired.

Yes, while even the slowest examples of previous M3s and M4s remained thrilling, with blisteringly potent acceleration accompanied by a soaring exhaust soundtrack, the post-E46 models seemed to become almost too obsessed with the pursuit of performance. Thunderous V8s and twin-turbo V6s are all good and well, especially when they provide explosive responses, but there’s more to sports cars than sheer bloody-minded speed.

More specifically, though the handling and roadholding were outstanding, the previous M4’s steering didn’t feel as connected or one with the driver, instead seeming a little remote and detached. Conversely, even with adaptive dampers on offer, the suspension (on Australian roads) lacked sufficient isolation from bumps and thumps, and so was never settled or calm. It was all too nervous and edgy, like a drug-addled athlete who’s indulged in too much partying.

Thankfully, the curse is broken with the latest iteration, even in the heaviest and slowest version like our M4 Convertible as tested, pushing out boundaries to thrilling effect once more.

With the newly-simplified and logically presented M performance modes only a push of a button away, the driver now no-longer has to concentrate on what setting they’re in, and instead just immerse themselves in the experience of accelerating, steering, cornering, braking and controlling this incredible sports convertible.

Tremendously strong in regular Road mode, the M4’s performance certainly lives up to the legend, stepping up into the supercar realm when Sport or Track are chosen, hunkering down as it thrusts towards the horizon with relentless speed and determination, accompanied by the gorgeous twin-turbo six’s revs as they soar towards the red line. The ultra-alert eight-speed auto’s operation is equally seamless, displaying uncanny intuition in its selection of the right ratio at exactly the right time.

These are all incremental improvements over what has come before. But what’s really changed is how rock-solid the BMW feels as it belts along at speed, magnetised to the motorway regardless of weather, its new AWD engineering keeping everything steady and planted. No more tetchiness to unnerve the driver.

Which makes the feel and fluency of the chassis even more remarkable, given that now all four wheels are driven. The very opposite of leaden or inert, the superbly weighted steering is instead light and alive in your palms, as you carve through corners with pin-point precision. Some might find it a bit too eager to change direction at first, but we reckon BMW has judged the balance just right. Its sheer agility is as life-affirming for driving enthusiasts as it is immersive. Bravo, BMW.

With so much grip and control, this is not to say that the driver can’t hang the M4’s tail out every-which-way, since the chassis set-up allows for progressive oversteer, even in Road mode, along with as much drifting as your courage allows where safe. As with the best sports cars, the M4 is as steerable from the seat of your pants as it is using the throttle.

Finally, there’s the M Adaptive chassis tune, that at long last broadens the M4’s repertoire from motorway grand tourer and rural-road blaster to city slicker and urban warrior, thanks to the suspension’s ability to better-absorb a much wider array of terrible road surfaces. Comfort now lives up to its name, with the ride – though still firm – no longer hard or crashy around town, ushering in a new level of civility that won’t fatigue or aggravate you or your occupants. We're so happy to report this progress.

One area where BMW might want to keep improving, though, is the abundance of road noise intrusion over certain coarse chip bitumen. While easily muffled by the sweet sounds of the twin-turbo six, banging audio system or dropping the roof, it now seems more obvious that the rest of the car has smartened up so much.

A small fly in an otherwise hugely satisfying ointment.

For a 5.3m long, 2.0m tall box on wheels the Granvia sure is easy to drive. I live in Sydney's Inner West (get your chai latte jokes out of the way now, please) and drove it daily through horrendous traffic on potholed roads, navigated through the tiniest streets and squashy car parks, went fishing in it and ate up motorway kays on the weekends.

There are going to be people who snort at that eight of 10, but I'm telling you  it's down to three things: comfort, ease and engine.

The seats were comfortable and supportive (my passengers felt the same way – again see the video of me being a bus driver), the ride is composed thanks to the suspension and no doubt the weight and the wheelbase of the Granvia.

The visibility is excellent thanks to those giant windows, the ride height and tech such as that digital rear view mirror, while the steering is light, and the turning circle is excellent at 11.0m.

Finally, that 2.8-litre turbo-diesel engine. Yes, it's thirsty but from a driving perspective only it's great – smooth and responsive.

Often vans are prone to a booming sound reverberating around the cabin and the Granvia VX was also a victim of this phenomenon with road noise echoing around inside. It's not bad and I could still hear people in the second and third rows, however.

The Granvia scored the maximum five-star ANCAP rating when it was tested in 2019. The amount of standard safety equipment is outstanding, particularly for a van with commercial origins.

Coming standard are nine airbags including ones which go all the way back to cover the fourth row and for child seats there are four ISOFIX points (second and third rows) and four top tether points (second and third rows).

The level of advanced safety equipment is also outstanding. Coming standard is Toyota's 'Safety Sense' pack which brings AEB with cyclist and pedestrian detection, lane departure alert with steering assistance, road sign recognition, auto high beam and active cruise control.

A full-sized spare wheel is located under the Granvia VX.

We feel here is where the company drops the ball.

Trailing all of its main luxury car rivals (except Porsche) by two years, BMW only offers a three-year/unlimited kilometre warranty, as well as three years of roadside assistance.

BMW says its vehicles’ servicing is condition-based, depending on how they’re driven and other factors, with a dash warning appearing to let the driver/owner know when it’s time. We advise servicing your M4 annually or at every 10,000km, just to be sure.

No capped-price servicing system is offered. However, as long as the first one is paid for before the first service on a new vehicle, the ‘BMW Service Inclusive Basic packages’ is available at extra cost, covering scheduled servicing for three years/40,000km or five years/80,000km.

No prices are published for M models like the M4, but a normal 4 Series costs from $1800 for the five-year/80.000km package. You can bet an M4’s will cost more.

The Granvia is covered by Toyota's five-year, unlimited kilometre warranty. Servicing is recommended by Toyota at six-month/10,000km intervals with capped price servicing of $240 per service for three years or 60,000km.