BMW 230i vs BYD Sealion 5

What's the difference?

The BMW 2 Series coupes and convertibles combine understated good looks with great dynamics and top-shelf quality. Extra equipment, especially the iDrive6 multimedia system, has brought it up to speed in terms of tech and value, while the M240i sets the compact performance benchmark. And if you really want to push the envelope, the M2 is right there at the top of the under $100k performance pyramid.

Cars that don’t always appeal to enthusiast buyers are often seen by manufacturers as a way of not bothering with the dynamics. Good enough is, apparently, good enough. Thankfully, BYD hasn’t taken that path here and the local suspension tweaks have turned what could have been a me-too product into a bit of a dynamic class leader. And even if buyers can’t verbalise the benefits of that, they will still be subliminally enjoying them with every kilometre.

The other stand-out feature is the price-tag which represents an awful lot of car for the money. And, in such a price-sensitive market as this one, that will get the BYD over the line for a lot of families. That it also offers a vastly better driving experience simply makes the value equation – and the purchasing proposition – even stronger.

The biggest visual clue to the revised 2 Series is the circular design bi-LED headlights, now standard on the 2 Series entry 220i, and mid-range 230i models, while hexagonal adaptive LEDs are standard on the top-shelf M240i.

But BMW couldn't leave those little light-emitting diodes alone, with LED front fog lights joining one-piece L-shaped LED tail-lights across the range.

Luxury Line-equipped cars feature a subtly revised nose treatment with larger intakes and a reshaped 'kidney' grille. There are also four new alloy wheel designs – a 17-inch alloy fitted standard to the 220i Luxury Line, and three optional M alloys for M Sport models (all no-cost options on the M240i).

The 230i M Sport features black, high-gloss bars in its kidney grille, as well as a black chrome finish for the exhaust finishers.

On the inside, there's the addition of a 'Black Panel' digital instrument cluster, which remains matt with the ignition off, and lights up with sharp graphics, configurable across conventional speed and rev readouts, as well as gear position, engine-efficiency data, vehicle settings and nav guidance.

There are also high-gloss finishes across the centre stack and front console, and even greater attention to detail around panel joins, trim stitching and switchgear.

But the hero is the latest iDrive6 multimedia system, run through an 8.8-inch colour touchscreen (6.5-inch on 220i), providing access to live content, radio and audio, navigation and maps, phone functionality, and vehicle settings through a simple and customisable app-style interface. The iPhone really as inspired car companies.

The M2 boasts M-specific instrument display content and a go-fast red needle on the tachometer.

The interior of the Sealion 5 feels pretty well-made and there are soft-touch surfaces on most of the touch-points. The steering wheel, too, is thick and chunky and nice to hang on to. But there’s a lot going on in terms of different colours, textures and surfaces, and it can all look a bit busy, despite the high-tech boardroom overall flavour. It’s also worth mentioning the trim material is synthetic but does a great job of looking and feeling like real leather.

Externally, there’s not a lot to grab the eye. Sure, it’s not an unpleasant looking vehicle, but neither does it stand out from the mid-size SUV pack. At least BYD decided against those cheap-looking plastic tack-ons on each wheel-arch.

Surprisingly, at a little over 4.4 metres long, the 2 Series (Coupe) is around 10cm longer than its 1 Series hatch stablemate (M240i +15cm), but aligns with its just under 1.8m width, and 1.4m height.

It seats four, with plenty of room up front and multiple storage options, including two cupholders in the console with an oddments tray behind, a 12-volt outlet, a lidded storage box between the seats with USB connection, a reasonably sized glove box, and segmented bins in the doors big enough for large water bottles.

While it was coupes only on the launch drive, we know the convertible has a pair of cupholders in the back, but not so in the coupe, and while headroom in the soft-top is okay (especially with the roof down) it's a squeeze in the hardtop.

More a 2+2 than a full four-seater, getting into the rear is an athletic exercise, and once installed, leg and headroom for this 183cm tester is tight. That said, kids up to teenager-size would be fine.

Boot volume is 390 litres (a 3 Series Coupe is 480 litres), with run-flat tyres on the 220i and 230i meaning there's no spare (or repair kit) under the floor, but the performance-focused M240i and M2, pack a 'BMW Mobility Kit' (compressor and tyre sealant to cover minor damage) in line with their high-performance (non-run-flat rubber).

A 60/40 split-folding rear backrest liberates extra load space, and a 'Through Loading System' with luggage compartment dividing net, and 40/20/40 split-folding rear seat is optionally available (220i & M2 Pure - $350 / 230i - $385 / M240i & M2 - $500).

And if you're keen on towing the 220i can pull 680kg of unbraked trailer, and 1500kg braked, with the minimum number stepping up to 715kg for the 230i. The M240i and M2 are no-tow zones.

Here’s the other big shock relative to the price-tag of the Sealion 5: This is not a small car. Based on the price, you might have been thinking the vehicle would be a compact SUV. And you’d have been wrong. This is a proper mid-sized SUV with room for five and luggage and an overall length of 4.7 metres and change. And to put that into some kind of perspective, that’s just 30mm shorter than the Sealion 6 which costs about $9000 more at its starting point.

The wheelbase is long, too, and the 2712mm between the axles helps make the interior even more spacious. That means there’s lots of stretching room in the front, but also that a grown adult can comfortably sit in the back seat behind another grown adult at the wheel and still have enough room in every direction. The window sills are commendably low in the rear seat, too, ensuring even littlies can see out.

The biggest problem in the back is that the seat cushion is a bit flat, but, like the front chairs, it’s still pretty plush.

With all five seats in place, the Sealion 5 boasts 463 litres of luggage space and the cargo area is well done with storage pockets at each side, a light and an under-floor tray designed to transport charging cables and a tyre repair kit. Yep, that’s right, there’s no spare tyre of any sort here. No surprise, really.

Fold the rear seat down and you’re suddenly looking at 1410 litres of cargo space and your SUV is now a panel van.

As well as the dual-zone climate control, the Sealion 5 also offers a single USB -C and a USB-A charging port in the front and rear compartments.

The Sealion 5 also offers a V2L (Vehicle to Load) function, meaning it can power camping or on-site work equipment and even act as your home’s battery.

The plug-in hybrid in question is the BYD Sealion 5. It has a claimed EV-only range of better than 100km, relatively quick charging, a decent sized battery, adequate performance, enough interior space for a family, good safety and lots of equipment. Oh, and it costs just $33,990, before on-road costs, in its entry-level Essential form. Incoming!

Equipment-wise, that sub-34K sticker gets you a 10.1-inch central info-screen, an 8.8-inch driver display, digital radio, a six-speaker stereo, wireless connectivity for Android Auto and Apple CarPlay and dual-zone climate control.

Throw another four grand on the table and you move up to the Premium version which adds plenty of kit for the $37,990 ask. That includes a panoramic sunroof, automatic tailgate, roof rails, heated and electrically folding mirrors, one-touch power windows, a six-way powered drivers seat and four-way powered co-pilot’s chair, a heated and ventilated driver’s seat and wireless charging.

The step up from Essential to Premium also includes a battery upgrade, and we’ll cover that off in the Under the Bonnet section below.

The 220i is powered by a 2.0-litre 'TwinScroll' turbo-petrol four, featuring 'Valvetronic' variable valve control and 'Double-VANOS' variable camshaft control, and developing 135kW at 5000rpm, and 270Nm between 1350-4600rpm.

Using a retuned version of the same engine (lower compression ratio, more turbo boost), the 230i pumps out a solid 185kW at 5200rpm, and a grunty 350Nm from just 1450-4800rpm.

The same (8HP50) eight-speed auto transmission is used across the board, pushing drive to the rear wheels only.

Then, the M240i is powered by a 3.0-litre, six-cylinder, turbo-petrol, pushing out no less than 250kW at 5500rpm, and a thumping 500Nm between 1520-4500rpm.

The same (8HP50) eight-speed auto transmission is used across the board, pushing drive to the rear wheels only, and happily, a six-speed manual gearbox is a no-cost option on the M240i.

The full-house M2's 3.0-litre turbo six produces 272kW at 6500rpm, and 465Nm from just 1400-5650rpm (500Nm from 1450-4750rpm on overboost), driving the rear wheels through a seven-speed dual-clutch auto, although a six speed-manual is a no-cost option (and standard on the M2 Pure).

Both variants of the Sealion 5 have the same driveline – mostly. They each use a 1.5-litre petrol engine teamed with a single electric motor, both driving the front wheels. Unlike the bigger Sealions, there’s no all-wheel drive version. Power peaks at 156kW and torque at 300Nm.

Why a non-turbocharged engine? BYD tells us the non-turbo engine helps keep cost out of the vehicle and, since the engine really only runs to power the electric motor and charge the batteries, it does so at a relatively constant engine speed, negating the need for a wide spread of petrol power.

The only major difference is that the Essential version has a 12.9kWh battery-pack, while the Premium gets a bigger, 18.3kWh pack for longer range, but precisely the same output and, therefore, performance.

A single-speed transmission is part of the BYD driveline package, also made possible by the fact that the vast majority of the driving of wheels is done by the electric motor.

Claimed fuel consumption for the 220i Coupe, on the combined (ADR 81/02 - urban, extra-urban) cycle, is 5.9L/100km, emitting 135g/km of C02 in the process. The 220i Convertible rates 6.1L/100km (140g/km).

The 230i Coupe is line-ball with that at 5.9L/100km (134g/km), and the the 230i Convertible at 6.2L/100km (142g/km).

The price of performance starts to bite with the M240i consuming 7.1L/100km (163g/km) in coupe form, and 7.4L/100km (169g/km) as a convertible.

Then, as you might expect, the M2 is thirstiest of all, the dual-clutch auto consuming 7.9L/100km (185g/km), while the six-speed manual version slurps 8.5L/100km (199g/km).

Auto start-stop is standard, fuel tank capacity is 52 litres across the board, and although technically these engines can run on anything from 91-98RON unleaded, BMW recommends 95RON premium as a minimum.

The Premium’s bigger battery claims to up the official NEDC range from the Essential’s 71km to 100km. BYD reckons with the 52-litre fuel tank brimmed and the car operating at its claimed 1.2 litres per 100km efficiency, the range of either version is just on 1000km. In the real world, that’s likely to be closer to 800km (especially with some highway running thrown in) but it’s still one heck of a solution to range anxiety.

There’s no DC charging function for the Sealion 5, so forget about commercial fast chargers. But on a 3.3kW AC power outlet, the maker claims the Essential can reach full charge in under four hours, while the Premium’s bigger battery will take under six hours to fully charge. A Type 1 charge cable is included.

Four 2 Series variants were offered for the launch drive program, a 230i Coupe (which BMW nominates as the most popular model in the range), M240i Coupe, M2, and M2 Pure.

Claimed 0-100km/h acceleration of 5.6sec for the 230i M Sport Coupe is quick, with the convertible stopping the clocks three tenths later.

Peak torque of 350Nm is plenty, and with that number available from 1450-4800rpm the mid-spec 2 Series is an entertaining drive.

It's M Sport (strut front, five-link rear) suspension keeps the body well buttoned down in quick going, while the beefier M brakes provide strong and progressive stopping power.

Even a firm squeeze of the throttle can't side-step some hesitation as the turbo spools up before right foot pressure translates into forward momentum, but despite the sporty tune, ride quality is good (even riding on notoriously harsh 18-inch run-flat rubber), while response and road feel from the variable-ratio steering are excellent.

The eight-speed auto is beautifully slick, with manual changes, via wheel-mounted paddles, sharp and positive.

Add the grippy leather sports wheel, snug sports front seats, and racy cloth/Alcantara trim (leather in the convertible), and you have a comfortable, nicely balanced and fun-to-drive package.

Accelerating from 0-100km/h in 4.6sec (convertible 4.7sec), the M240i effortlessly achieves 'genuinely rapid' status. Yes, it's fast, but never furious, in the sense that even under the pressure of enthusiastic peddling it remains civilised and composed.

Maximum torque of 500Nm is not to be sneezed at, and when you realise that mountainous maximum is actually a flat-top plateau stretching from only 1520rpm up to 4500rpm, satisfying urge is never far away. And the flexible 3.0-litre turbo-six is an aural treat as it howls its way towards a 7000rpm rev ceiling.

The standard 'Adaptive M Suspension' offers settings from 'Comfort' through to 'Sport+', but even in the most forgiving mode the car remains taut and communicative.

The 18-inch rims, shod with Michelin Pilot Super Sport rubber (225/40 front / 245/35 rear) don't upset the ride as much as you'd expect, although coarse-chip surfaces send rumble through to the cabin.

In terms of ergonomics and general function, the new iDrive6 system is simple and intuitive to use, the current BMW dash and console layout is a model of efficiency, but the two-stage (depress small button on stubby lever, then shift) process to select drive or reverse can be a frustratingly hit-and-miss affair if you need to get going quickly.

Then, the M2 is all business, with a properly focused feel, and the ability to accelerate from 0-100km/h in a claimed 4.5sec for the six-speed manual, and just 4.3sec for the seven-speed dual-clutch. Try not to smile as that g-force shoves you back in your seat. You won't succeed.

Although peak power arrives at a relatively high 6500rpm, maximum torque of 465Nm (500Nm for limited periods on overboost) is ready for action across a broad spread from 1400-5650rpm, so the M2 has adrenalin flowing through its veins at all times.

An electronically controlled 'Active M Differential' manages torque distribution across the rear axle to optimise power down, with the ability to send anywhere from zero to 100 percent of drive to either back wheel.

The 'M Servotronic' steering, switchable through comfort and sport modes, is feelsome and linear in its response, the mega 'M Compound Brake' package (borrowed from big-brother M4) is professional grade, and while the seven-speed dual-clutch may shift faster, snicking up and down the manual's six ratios is a rare pleasure.

Rolling on 19-inch, ultra-high-performance Michelin semi-slick rubber (255/35 front / 275/35 rear) the M2 is never going to waft like a limousine, but if you're signing on for this kind of performance and dynamic ability, some ride harshness over less than perfect surfaces goes with the territory.

You don’t have to drive very far to realise that the local input into the Sealion 5’s suspension and steering have been worth the effort. BYD Australia has a local engineering team on call these days, and it shows here.

Actually, the steering is not the highlight; it has some weight but not a whole lot of feel, or, indeed, feedback for the driver. The ride and handling combination is what stars. Obviously well-damped, the suspension allows for a ride that is both complaint and quiet, without causing the car to wallow around like some jacked-up designs can with their higher centre of gravity.

In fact, the BYD is athletic to the point where keener drivers will find it an entertaining drive; hardly something that can be said for the majority of medium SUVs.

Performance is strong without being overwhelming and even though the Sealion 5 has that signature electric-drive feeling of effortlessness, the accelerator pedal has been calibrated to avoid the neck-snapping surge of grunt off the line. As such, it emerges with a fairly flat acceleration curve, and no hint that the petrol motor is cutting in or out.

Until, that is, you bury the throttle all the way at which point the petrol engine takes a few second to join in. And when it does, it’s pretty vocal – shrill, almost – as it catches up with the rest of the car and starts directly driving the wheels. To be fair, though, this is not going to be a common occurrence in everyday life thanks to the flexibility of the petrol-electric system for 99 per cent of circumstances.

On the move, the cabin is perhaps most notable for its soft, plush seats that are a nice change from the church pews of some manufacturers. And although the driving position is about right, taller drivers might prefer a steering column that extends out another few millimetres.

The driver display screen is another source of annoyance. It’s pretty small and contains lots and lots of information, to the point where the typeface is too small to be read on the run by anybody who relies on reading glasses.

Passive safety in the Sealion 5 starts with no fewer than seven airbags including full-length side-curtain bags. 

There’s also a front-centre airbag, something we’d like to see in more cars, particularly at this price-point. Child restraint points in the rear seat are the ISOFIX type.

The BYD gets pretty much the full suite of driver aids, including autonomous emergency braking, blind-spot monitoring, rear-cross traffic alert with active assistance, stability control, active cruise-control, traffic-sign recognition, front and rear collision warning and tyre pressure monitoring.

The Sealion 5 also incorporates a driver-attention monitor which seems better calibrated than some earlier efforts from some of the Chinese carmakers. Also improved in calibration terms is the lane-keeping assistance which is still too violent for our tastes, but more subtle than some of the competition’s systems. But while the savagery of this system has been toned down, it appears to have been at the expense of sensitivity and, time and time again, the cameras missed road markings that were faded or dirty.

The major safety benefit in paying more for the Premium variant is the addition of front parking sensors and a 360-degree camera instead of the Essential’s simple reversing camera.

The Sealion 5 has not been ANCAP tested as yet, although BYD says this is largely down to ANCAP’s scheduling rather than any hesitance on BYD’s part.

BMW uses 'condition-based' servicing, with the car effectively telling you when it's time to visit the workshop, but the 'BMW Service Inclusive' program offers distance and time options to fix maintenance costs (on a 'Basic' or 'Plus' plan) for up to 10 years/200,00km.

For example, a five year/80,000km service package for the 2 Series costs $1340 for the Basic option (oil service/top-up, annual vehicle check, microfilter, air filter, fuel filter, brake fluid, spark plugs), and $3550 for the Plus pack (adds brake pads and discs, wipers rubbers, and clutch disc and plate).

The standard BMW warranty covers three years/unlimited km.

Like other BYDs, the Sealion 5 comes with a six-year/150,000km warranty. Some of the competition have unlimited kilometre warranties, but to be honest, 150,000km in six years is going to be beyond the need and aspirations of most owners.

The EV battery is covered by an eight-year/160,000km warranty, and let’s not forget, BYD was a battery manufacturer before it started making whole cars. Certainly, the company is very bullish about the quality and safety of its 'Blade' battery technology, claiming it easily passes the technically-daunting 'nail-puncture' test.

BYD plans to have capped-price servicing for the Sealion 5, but no pricing announcements have been made yet.

Servicing also falls into line with other BYD models, so that means 12 months or 20,000km intervals.