2022 BMW M4 vs 2021 Renault Kadjar

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 Renault Kadjar Intens ticks a lot of the urban boxes. It’s small, which is good for navigating narrow city streets and parking in tight spaces, but it’s also spacious and practical. The Kadjar is fuel efficient for a four-cylinder petrol engine and it has that sophisticated French styling.

The Intens is expensive, though, and unless you absolutely have to have leather seats, a glass roof, and the Bose stereo I’d go for the mid-range Zen grade and save yourself $5K but still have all the same safety tech. That said the Intens has auto parking as standard which is a nice convenience for the city.

Safety could be better. The AEB system doesn’t have pedestrian and cyclist detection, rear cross traffic alert, or reverse emergency braking.

Finally, the dual-clutch automatic and 1.3-litre turbo-petrol engine while a fuel efficient combination, isn’t all that easy to live with and can make driving a less-than-smooth experience. The Nissan Qashqai’s combination of CVT auto and four-cylinder naturally aspirated engine is better suited to the urban jungle - something to think about there. 

Now the scores, the Kadjar Intens gets the same mark for daily driving and its urban talents – it could be smoother to drive, but there’s still lots to like. 

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.

People talk about French design being good. Well if you want to see just how good take a look at the Nissan Qashqai, because the Kadjar is fundamentally the same SUV with Renault’s design spin applied.

Yep, as I mentioned about 15 seconds ago, Renault and Nissan are part of an alliance that allows them to share the same cars, but each brand has room to ‘make it their own’ with styling that delivers a very different look, inside and out.

Now, the Qashqai is not an ugly car, but I think the Kadjar is more stylish and premium looking in the same way the larger Renault Koleos SUV is gorgeous compared to the relatively straight-laced Nissan X-Trail it’s based on.

There’s no doubt the Kadjar is a Renault thanks to the giant diamond logo on the plunging grille. I like the way the front bumper rises up into the bonnet like it’s all one piece, but I’m not completely sold on the rear of the car which looks a bit like its shirt is tucked into the back of its pants, which makes no sense unless you look at the images.

Still, the tail-lights have a prestige feel and the Kadjar model name spelled out across the tailgate is a confident statement, also adopted recently by other brands such as Volkswagen (T-Cross) and Ford (Puma).  

Telling the Intens apart from the other two grades is fairly easy, it has 19-inch wheels (the others have 17-inch rims), there’s the enormous glass roof, and it also has a chrome effect on the front and rear bumpers, side skirts, and around the fog lights. It’s a more premium look.

That higher-end feel goes into the cabin as well with the Intens’ black leather upholstery and colourful ambient lighting. The touchscreen is tiny, though, and there isn’t a great deal inside that you don’t get in the entry-grade Kadjar’s cabin, which is also almost as stylish.

The Kadjar is classified as a small SUV, which means nothing really when it comes to wondering if it’s going to fit in your garage or in the tiny parking spaces we’re faced with in the city.

So, I’ve mapped it out for you. The Kadjar’s dimensions are, 4449mm long, 2058 mm across (including the wing mirrors), and 1612mm tall. 

Another interesting thing – each B-pillar is adorned with a little French flag. I’m not sure if they're a sign of Gallic national pride or to remind everybody that meets the Kadjar that Renaults are French.

Either way, you don’t see this type of thing on other cars and for many buyers the appeal of a Renault is having a car that’s not like everybody else’s.

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 Kadjar is a big-small SUV, in that it’s longer than many in the same segment at 4.4m with a wheelbase of more than 2.6m, which means more space inside for people and their stuff.

That said, don’t expect limousine legroom, but at 191cm (6'3") tall, I can sit behind my driving position with my knees only just touching the front seat back, which is pretty darn good for a small SUV.

Making life a bit more comfortable back there, too, are directional air vents, two USB charging ports and a 12V power outlet. There are another two USB ports and a 12V up front, too.

Cabin storage is okay. The door pockets in the back are big enough for a 500ml bottle, while there are larger ones in the front, along with two cupholders and another circular hole, which looks like it’s for coins, if anybody still uses those?

The centre console bin is pretty decent in size and so too is the boot which has a cargo capacity of 408 litres with all seats up and 1478 litres with the second row folded flat.

The Intens is the highest grade of Kadjar you can buy and has a list price of $37,990. As a point of reference, the entry-grade Kadjar with an automatic transmission is $29,990. So, what are you getting for an extra $8K?

Well, the entry-level Kadjar comes with a 7.0-inch touchscreen with Apple CarPlay and Android Auto, cloth seats, dual-zone climate control, privacy glass and 17-inch alloy wheels. The Intens gets 19-inch alloys, leather seats (heated up front), a seven-speaker Bose sound system, leather steering wheel, panoramic sunroof, as well as LED headlights and fog lights.

The Intens also comes standard with auto parking, and even the most determined DIY parkers will appreciate that in the city.

The Intens also has more advanced safety equipment than the entry-grade, although the same tech also comes on the mid-spec Zen for $32,990.

You may already know this, but the Kadjar and the Nissan Qashqai are essentially the same car. Renault and Nissan have an alliance which lets them share technology and as well as entire models.

So, you might want to compare the Kadjar Intens to a Qashqai Ti which lists for $38,790. Other models to check are the Mitsubishi ASX and Toyota C-HR.

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.

While the Renault Kadjar and Nissan Qashqai are essentially the same car, they don’t share the same powertrain. The Kadjar has a smaller but more powerful engine – a 1.3-litre turbo-petrol four-cylinder making 117kW/260Nm.

Shifting gears is a seven-speed dual-clutch auto. There’s no manual available, and all Kadjars are front-wheel drive.

Frankly, the Qashqai four cylinder with less grunt and CVT are a smoother combination. The dual-clutch auto and turbo lag means power delivery and acceleration are delayed, while low-speed gear shifts can be jerky.

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.

Renault says after a combination of open and urban roads the Kadjar will have used 6.3L/100km. In my own testing I measured 6.5L/100km at the fuel pump. That’s outstanding.

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.

Renault’s Kadjar may be a better-looking version of Nissan’s Qashqai, but it doesn’t drive as well. This comes down to the engine and transmission Renault has gone with.

There’s turbo lag with that small four-cylinder and this delay is made more pronounced by a dual-clutch transmission that causes the vehicle to lurch during shifts.

This type of shemozzle is not uncommon, the Ford Puma and Nissan Juke behave in the same way with their similar powertrains.

There’s nothing wrong with them, it’s just that for a car that’s probably going to spend its life mainly in the city, the Kadjar won’t provide the smoothest driving experience.

The Qashqai has a CVT automatic and while these transmission aren’t as sporty feeling as a dual-clutch, they’re smooth and good for easy city driving.

The Kadjar does have a comfortable ride and good handling, so if you’re able to get used to the antics of the engine and transmission there’s more to like than not about the way this Renault drives.

The Kadjar hasn’t been given an ANCAP safety rating, but it did score the maximum five stars when tested by its European equivalent Euro NCAP in 2015.

But beware, the Kadjar isn’t equipped with much in the way of advanced safety equipment. Yes, there is AEB on all grades, while the mid-spec Zen and top-of-the-range Intens come with blind spot monitoring and lane departure warning. But that’s about it. No lane keeping assist, or rear cross traffic alert, or adaptive cruise.

There are front and rear parking sensors, which are almost vital in the city, and a reversing camera.

It’s for this reason the score here is so low – charging $38K and not having anywhere near the level of safety tech on a new car that costs much less is disappointing.

For child seats there are three top tether anchor points across the second row and two ISOFIX points.

Under the boot floor is a space saver spare wheel.

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 Kadjar is covered by Renault’s five-year/unlimited kilometre warranty.

Service intervals are every 12 months or 30,000km and capped at $399 for the first three services, followed by $789 for the fourth then back to $399.

There’s also up to five years roadside assistance, if you service your Kadjar with Renault.