BMW 4 Series vs Kia Stinger

What's the difference?

The BMW M440i xDrive Gran Coupe manages to combine sleek design with a fun-to-drive personality and surprising practicality. It’s a rapid premium, four-door, five-seater offering extra flair, and in this part of the market, good value. But more than anything else it’s got a cracking in-line six under the bonnet.

The Stinger GT-Line is a great machine. It looks good, feels good to drive and while it's not the cheapest large sedan, it's also not a Camry. With a strong European vibe, it's a nice bridge between boring-dependable and out-of-reach European. Boasting a strong link to Europe in its chassis DNA, it has it all apart, maybe, from the badge.

But Kia has a habit of doing unexpected things and the Stinger was a bold move worth making just for the halo effect of having such a cool car in the range. It has done good things for the company's reputation, as though the rest of the range isn't proof already.

So, how does this four-door 4 Series differ from a four-door 3 Series? The answer is as plain as the nose on this car’s face.

BMW’s head of design, Adrian van Hooydonk, has been expanding the brand’s signature ‘kidney grille’ in every conceivable direction, and this is the much talked about interpretation adorning all 4 Series models (petrol, hybrid and electric) as well as the M3 sedan.

The new Gran Coupe is longer, wider, and taller than the outgoing model, and the track is broader, front and rear. The wheelbase has also been extended, now a whole 5.0mm longer than the 3 Series.

The DRLs and headlight main beams are LED with laser high beams, immense gills square up the edges of the front clip, while a vent and the strake attached to it stand the car apart. Plus, of course, the doors are frameless. 

One niggle, though. I’m not in love with the slender door handles. It’s hard to get a good grip on them, especially in the wet. 

Standard 19-inch alloy rims are shod with Pirelli P Zero rubber 245/40 fr / 255/40 rr), the roofline slopes distinctly towards the rear, a lip spoiler on the trailing edge of the tailgate is classic BMW, darkened LED tail-lights wrap around the rear corner, and a diffuser-type panel is flanked by large exhaust apertures.

Our car’s ‘Aventurine Red’ finish is a $3850 option, but to my eyes anyway it looks superb.

Exterior trim including the grille frame, front air intake inserts, mirror upper housing, model designation badges, and tailpipe are finished in ‘Cerium Grey’, which I reckon 99.9 per cent of people will see as black. 

The interior will be familiar territory for any current BMW owner, the 12.3-inch digital instrument screen sitting in a compact, hooded binnacle, and partnering with a 10.25-inch multimedia display standing proud of the dash above the broad centre stack. 

The seats are trimmed in top-shelf leather with blue contrast stitching, plus the grippy sports wheel is also wrapped in genuine hide.

BMW calls the finish on the main buttons and controls ‘Galvanic’ which translates to a slick silver metallic look and feel. Configurable ambient interior lighting is a nice touch, and the broad console enhances the driver-focused feel, with a sprinkling of carbon-fibre around the centre console and dash lifting the sense of occasion.

Overall, the interior feels clean and classy with an obvious attention to detail.  

The Stinger looks fantastic. I know the car has its detractors, but there's a massive Euro influence here that sits well in my visual cortex. It's maybe not as ooh-aah as the A5 or the outgoing BMW 4 Series Gran Coupe, but the Stinger can and should be mentioned in the same breath. It looks terrific, even if it is a bit fussier in the details.

From the signature grille, the low beltline, big wheels and sports coupe roofline, it looks sleek and sophisticated. 

Inside is a bit more conventional, with some real classic touches such as circular air vents, conventional-looking gear selector and a flat-bottomed steering wheel. It's cool, clean and, with the big new screen, a bit more techy-looking than before. There are lots of nice materials and the odd rogue one, but it's a good cabin that feels well put-together.

At close to 4.8m long the 4 Series Gran Coupe is a sizeable machine. Up front, the feeling is airy and comfortable, and the rear is surprisingly spacious, especially in light of the car's sloping roofline.

At 183cm I have to fold myself tightly to fit under the low roof, but once inside I have enough room to sit behind the driver’s seat set for my position with more than enough legroom and adequate headroom. Put three full-size adults across the back row, though, and there will be breathing difficulties.

Kids will be fine, however, and individual vents with adjustable temp in the rear was a big plus during a particularly hot test week.

For storage there are generous door bins in the front with room for large bottles, a decent glove box, dual cupholders in the centre console, a reasonable lidded bin (which doubles as a centre armrest), and the wireless device charging bay (forward of the gearshift) makes a handy oddments space when not in use.

In the rear, again the doors feature pockets with room for (medium-size) bottles, there’s a fold down centre armrest with two cupholders, but thanks to the one-piece shells on our test car’s optional M Sport front seats there are no map pockets.

Power and connectivity runs to a USB-A socket and a 12V outlet in the front centre console, as well a USB-C port in the front storage bin, a pair of USB-Cs in the rear, and a 12V outlet in the boot.

Speaking of which, lift the tailgate and with the rear seat upright we were able to fit all three of our suitcases or the beefy CarsGuide pram into the healthy 470-litre (VDA) boot space.

Lower the 40/20/40 split-folding rear seat down and 1290 litres of volume is at your disposal. Plus there are handy bag hooks and tie-down anchors to help secure loose loads.

You can also tow a braked trailer up to 1.8 tonnes (750kg unbraked), but don’t bother looking for a spare of any description, a repair/inflator kit is your only option.

This is really a four-seater car. While there is good legroom in the rear, the falling roofline, small door aperture and huge transmission tunnel box you in a bit, almost rendering the middle seat useless for all but the shortest of folks. You do get your own air vents, though, which is generous.

The low roof also means limited headroom, made a little worse by the standard sunroof. I had room but taller people might brush the headlining. There are two cupholders front and rear for a total of four and each door has a bottle holder.

The boot is a modest-for-this-size 406 litres, rising to 1114 litres with the seats down. Access to the boot is good if not spectacular; the hatch opens wide but a slightly narrow aperture means loading and stowing flat packs and things like that could be a struggle.

As is the custom at this time of the year, the Stinger scored a mild update for that minty-fresh taste at the dealer. Not much has changed in the looks department (good) and the most obvious tweak is the brand-spanking new media system already seen in the brilliant new Sorento.

The GT-Line is one of two four-cylinder variants of the Stinger, priced at $57,230 or $60,690 driveaway, a solid $7000 more than the 200S and it's $730 more than the MY20. It's also uncomfortably close to the 330S, which has the delicious twin-turbo V6, but obviously a lower equipment level.

For your money you get 19-inch alloy wheels, a 15-speaker stereo, dual-zone climate control, camera package that includes a reversing camera, side cameras and front camera, keyless entry and start, front and rear parking sensors, active cruise control, powered heated and ventilated front seats, sat nav, automatic LED headlights, head up display, leather seats and wheel and even more besides. It's a lot, which is fair given the price.

The 15-speaker stereo is run by the excellent new media system on the excellent new 10.25-inch touchscreen. It's great to look at, has some really cool ideas in it (including the hilarious soundscapes list which includes, for some reason, a noisy cafe environment), DAB and Apple CarPlay and Android Auto.

Under the bonnet is BMW’s (B58) all-alloy 3.0-litre twin-scroll turbo intercooled, in-line six-cylinder engine, driving all four wheels via an eight-speed automatic transmission and electronically controlled clutch pack, as well as an electronic limited-slip differential at the rear.

It features high-pressure direct-injection and BMW’s ‘Valvetronic’ system managing air flow to the intake side, to produce 285kW at a relatively high 5800-6500rpm. But the big punch is 500Nm of peak torque from just 1900rpm all the way to 5000rpm.

The M440i is also a mild-hybrid with a 48-volt starter motor-generator and supplementary battery able to give an 8.0kW kick at low engine speeds.

Under the GT-Line's bonnet is Kia's Theta II 2.0-litre four-cylinder turbocharged engine. It's the same as before, with a stout 182kW and 353Nm. Driving the rear wheels is an eight-speed automatic from the Hyundai-Kia empire.

It's pretty rapid, knocking out the 0-100km/h spring in just six seconds, a mere 1.1 seconds slower than its faster sibling's 4.9 for the benchmark.

BMW’s official fuel economy figure for the M440i xDrive Gran Coupe, on the ADR 81/02 - urban, extra-urban cycle, is 8.2L/100km, the 3.0-litre turbo six-cylinder emitting 187g/km of C02 in the process.

Stop/start is standard, and we saw an average of 11.1L/100km over city, B-road and freeway running during a week with the car.

With the 59-litre tank brimmed (with minimum 95RON premium unleaded) that real-world test number translates to a range of around 530km.  

Kia's claimed combined cycle figure is 8.8L/100km. As the Stinger goes without trickery like stop-start or mild hybridness, it's no surprise that my week with it yielded an indicated 10.4L/100km, which isn't bad for a 1750kg sports sedan that was not molly-coddled and also spent some time in a resurgent case of crap traffic in Sydney.

It also drinks standard unleaded, which is a nice touch.

BMW says the M440i xDrive Gran Coupe will accelerate from 0-100km/h in 4.7sec, and I reckon the threshold for a properly quick car is sub-five seconds.

The 3.0-litre turbo six develops its peak power of 285kW between a relatively lofty 5800-6500rpm, but the big number is a solid 500Nm punch of pulling power delivered between 1900-5000rpm.

Squeeze the throttle pedal pretty much anywhere in the rev range and the response is glorious. Rapid acceleration accompanied by raucous engine noise and rorty exhaust note (albeit with some synthetic support). Various pops and bangs in the Sport settings add extra entertainment.. 

The eight-speed auto gets some electric support from the mild-hybrid system to fill the torque gap on up shifts, and the result is a conventional torque-converter transmission that behaves like a dual-clutch.

Shifts are seamless in general driving, and satisfyingly quick in a more aggressive mode, the wheel-mounted paddles dialing up the fun in manual changes. 

Suspension is double wishbone front and multi-link rear with the standard ‘Adaptive M Suspension’ built around an adaptive damper set-up.

The change between the ‘Comfort’ setting to the ‘Sport’ or ‘Sport+’ calibration is close to instant and makes a discernible difference, especially in terms of ride comfort.

I found the best ‘Individual Sport’ arrangement to be damping in Comfort, with the steering engine and transmission in Sport. The car flows so beautifully through corners with urgent response from the powertrain.

By all means dial up the suspension if you’re having a real crack, but the car feels superbly balanced, stable and predictable in Comfort (front to rear weight distribution is 50:50).

The electrically-assisted variable-ratio steering is nicely weighted with good road feel, and the grippy sports steering wheel is a nice point of contact.

The xDrive AWD system’s default setting is rear-biased, although it will push most of the drive forward when required. But the RWD feel is unmistakable. 

The M440i weighs in at around 1.9 tonnes but feels lighter and more nimble than that figure would typically indicate.  

A standard electronically-controlled M Sport limited-slip differential puts the power down confidently. I have a favourite LSD test corner on my regular evaluation drive, a sharply twisting and rising left-hander.

Rolling into it in a low gear before planting the throttle mid-corner, the car simply hunkers down without a hint of fuss (or traction loss) as it rockets out the other side.

Optional M Sport front seats ($2000) provide comfort and firm location in equal measure and in terms of ergonomics BMW knows how to focus on the driver and set-up an efficient environment. Key controls are perfectly positioned and simple to operate.

I have an issue with the ‘Lane Departure Warning’ function, however, which is too quick to intervene and overly intrusive when it does so. I turned the ‘Steering Intervention’ function off. You can dial down steering wheel vibration warnings, too.

The standard M Sport brakes feature big vented rotors front and rear, with fixed four-piston front calipers doing the bulk of the work. They’re strong but don’t bite or release too aggressively. It’s easy to grease in a smooth application. 

I have driven and loved the Stinger GT. It's tremendous fun, goes like a rat running away from a cut snake, which itself is being chased by a mongoose with its bottom on fire, and it handles like a proper sports sedan.

The GT-Line is obviously not that quick, but it's not slow, either. But it does take a bit of the GT's DNA and delivers a driving experience eerily reminiscent of an E90 BMW 3 Series. That seems like an out-of-date reference, but it was a beautiful car to drive with a lovely balance of ride and handling.

The steering has good feel and you know what's going on underneath the front wheels. You sit towards the centre of the car, also a BMW trademark. Turn the wheel and the car goes with you, despite its bulk, and it's happy to dance a bit with its limited-slip diff.

The 2.0-litre turbo does a good job in most conditions but you feel it coming up short when you're hustling it. It's never breathless, but the torque deficit to the turbo six is clear. If you've not driven the faster Stinger, you may not notice, but there's a touch of lag in the 2.0 that contributes to the idea it's working hard to move the big sedan.

But back off a little and it becomes a fluid, fun drive. In town it's firm but very comfortable, gently bumping rather than crashing into potholes. The rear suspension is a complicated five-link set-up that costs money and eats into boot space but delivers the goods.

Given its length the Stinger is a bit tough to manoeuvre in tight spaces and its 11.2m turning circle isn't too flash either, but you soon get used to it.

The Stinger ships with an impressive safety package that includes seven airbags, ABS, stability and traction controls, high- and low-speed forward AEB with pedestrian and cyclist detection, intersection assist, lane-keep assist, steering assist, driver attention alert, high- and low-speed forward collision warning, front cross traffic alert and rear cross traffic alert.

You get two ISOFIX points and three top-tether anchors.

The Stinger scored five ANCAP stars in 2017.

The M440i Gran Coupe is covered by BMW’s three-year/unlimited km warranty (including paintwork), as well as 12-year/unlimited km anti-corrosion (perforation) cover. 

That’s off the premium market pace now with Genesis, Jaguar, and Mercedes-Benz at five years/unlimited km and Lexus set to join them from January 1st, 2022. 

That said, roadside assistance is provided for the duration of the main warranty, but it’s worth noting “rattles and squeaks” are only covered for one year.

Service is condition-based, the car telling you when maintenance is required, and a range of service packages are available. The basic plan covering a 4 Series for five years/80,000km comes in at $1750. 

Kia's ground-breaking seven year/unlimited kilometre warranty along with roadside assist for the first 12 months. Each time you service your car at Kia, you get an extension on your roadside assist for up to eight years.

Perhaps the only thing that makes you go, "Oh, what?" about the Stinger is the 12 months (Good)/10,000km (Oh...) service intervals. That's pretty common with Kia's turbo engines but is a little inconvenient. Then there's the cost - prices range from $312 to $685, which adds up to $3459 over the first seven services. If you stay under 10,000km/year, that's not bad going at under $500 per year for servicing, but if you're a high-miler, it will add up.

The servicing isn't outrageous - and the prices are capped - but it's not cheap, either.