Tesla Model Y vs BYD Sealion 8

What's the difference?

If you like the five-seat Model Y, then you'll like the six-seat L version even more. I think this the best example of Tesla's electric SUV to date, and the cabin layout just makes a lot of sense, and would suit plenty of families who don't need to squeeze someone into a compromised middle seat.

Note: The author, Andrew Chesterton, is a co-owner of Smart As Media, a content agency and media distribution service with a number of automotive brands among its clients. When producing content for CarsGuide, he does so in accordance with the CarsGuide Editorial Guidelines and Code of Ethics, and the views and opinions expressed in this article are solely those of the author.

There’s no denying the value the BYD Sealion 8 Premium offers as it packs a lot in for the price. Its efficiency and inoffensive looks add up to a good package and reflect what it does well. That said, the underwhelming driving experience and clunky media system are noticeable. Whether they're deal breakers is up to you.

Spoiler alert - it looks a lot like a five-seat Model Y, doesn’t it, albeit a slightly bigger one. And you’d have to be a bigger Tesla head than me to immediately spot the differences at a glance.

The wheelbase is longer, the rear doors are bigger as are the rear 3/4 panels and the roof line is higher, helping with headroom in the third row.

Still, safe to say if you like the look of the five-seat Model Y, you’ll like this one. And if you hate it, well, good luck.

The alloys are 19-inch and shaded by the aerodynamic caps and there are light bars front and rear which debuted on the updated five-seat Model Y when it arrived mid-last year.

The bigger changes are inside, of course. I promise we’ll get to the second and third rows in the Practicality section, but let’s talk about the look and feel first.

There’s a love/hate relationship with Tesla’s stripped-back aesthetics, and I’m probably somewhere in the middle. I like the airiness of the space in the cabin, and I think it feels nicely put together, and I really dig the contrasting fabric used on the doors and dash which add a little visual interest to the cabin.

But I hate using the central screen to select a gear and I hate not being able to see how fast I’m going without turning my head. A head-up display would work wonders in the Model Y L cabin.

The Sealion 8 is a big unit, and its design leans more towards soft and rounded than sharp. There’s a sense of restraint with its pillowy panels, smooth curves and flush door handles all contributing to a clean, almost clinical look.

The 21-inch wheels add a bit of presence, as does the full-width LED light bar with its braided design. But overall, it doesn’t try too hard to stand out. It’s inoffensive - clean and easy on the eye, but it stops short of having any sense of identity.

Inside, the cabin carries that same restrained approach. There’s black leather upholstery, some interesting geometric detailing through the panels and speaker grilles and a generous use of soft-touch materials throughout.

The large displays and panoramic sunroof help lift the space, giving it a premium feel, but more importantly, it’s just a comfortable, easy place to spend time. Which, for a family SUV, arguably matters more than anything else.

Captain’s chairs are simply a more luxurious version of second-row seating. With that there is no argument and the heated and cooled chairs that occupy the second row of the Model Y L are pretty good examples of them.

Space, both knee and headroom, is ample, and you can adjust each seat individually if you want to grant a bit more space to any third row occupants. Armrests deploy at the push of a button — as do the two hidden cupholders — and it really is easy to settle in and get comfy.

The third row is a bit more hit and miss. I’m 175cm and found I had enough legroom and headroom, but the big plastic mouldings that emerge from each side of the Model Y (which house a cupholder) are a miss. They end up pushing you into the seat next to you, and I can foresee a lot of arm rubbing with anything like two adults back there.

Also confusing is how to actually get out of it. You can fold the seat in front of you flat, but then you have to climb over it. I found it easier to just walk out between the seats.

There are another two USB-C ports in the rear row and you get air vents but no temperature controls. 

The Model Y L stretches 4969mm in length, 1668mm in height and 2129mm in width, which is roughly 18cm longer and 4.5cm taller than the five-seat model. The extra space doesn’t sound like that much, but start dropping rows and you find a heap of storage space.

Both the second and third row stow electronically from the boot, but with them in place you’ll find 420 litres of storage in the double-layer boot. Drop the third row, and that number grows to 1076 litres. With the third row folded there is a massive 2423 litres of space. The frunk serves up another 116 litres.

There’s also room (and the ISOFIX attachment points) for four child seats.

Up front, storage and general usability are well thought out. There’s a handy shelf tucked underneath the centre console with two USB-C ports, while a tray above houses the fast wireless charging pad. You also get a sunglasses holder, two cupholders and decent-sized bottle holders in the doors, so it’s easy to keep things organised.

Seat comfort is a highlight, and the overall layout is clean and easy to live with, but the same can’t be said for the multimedia system. While the graphics are sharp and the touchscreen is responsive, functionality isn’t always its strong suit. Wireless Apple CarPlay and Android Auto are included, but CarPlay required reconnecting on every drive during testing and the digital radio and phone calls experienced noticeable signal dropouts. It’s the kind of friction that chips away at the day-to-day experience and starts to feel out of step with how polished the rest of the cabin is.

There’s also a heavy reliance on the screen for core functions. Climate control is integrated, which is fairly standard, but so too are things like headlight controls. It might suit those who are used to navigating everything through a screen, but needing to dig through menus to adjust something like auto high beam on the move feels like a step too far. Bring back buttons.

The second row is where the Sealion 8 really leans into its family-friendly brief. Space is generous, with enough width to comfortably accommodate three adults and the flat floor helps here too. There are three top tether points and two ISOFIX mounts, while charging is covered by a USB-A and USB-C port.

Amenities are a standout. The outboard seats mirror the front with heating, ventilation and massage functions, which quickly become a favourite, alongside dedicated climate controls, roof-mounted air vents and multiple cupholders. A set of sunshades would round things out nicely, but it’s otherwise a very accommodating space.

Access to the third row is less impressive. The manual slide and tilt mechanism feels a little heavy and fiddly to operate and the space itself is best reserved for kids. In practice, that means younger passengers will likely take the path of least resistance, as mine did and simply climb over the second row instead.

Amenities are fairly basic, with directional air vents and cupholders, but there’s no charging provision back there. You do, however, get two top tether points and ISOFIX mounts, which will be a plus for larger families.

Around the back, the boot is a practical, usable space with a wide opening and flat loading floor. With all three rows in place, there’s 270L on offer, which is enough for a few school bags or a grocery run, expanding to 960L with the third row folded. There’s no spare tyre, just a repair kit, which may be a consideration for regional drivers. A 12-volt socket and powered tailgate round things out in this grade.

The BYD Sealion 8 range is relatively straightforward, with two grades on offer and the base variant available with a choice of two drivetrains. For this review, we’re in the flagship Premium AWD, which is priced from $70,990 before on-road costs.

It lines up against the Chery Tiggo 9 Super Hybrid at $65,430 driveaway, the Kia Sorento GT-Line PHEV from $71,130 before on-roads, and the Mazda CX-80 P50e Azami, which stretches up to $87,950 before on-road costs.

On paper, the Sealion 8 Premium doesn’t quite undercut the Chery on price or match its claimed 170km (NEDC) electric-only range, but it’s not far off, with a still-impressive 152km (NEDC). And when you look at the broader package, it starts to make a fairly strong value argument, particularly against its other key rivals.

The 'Premium' badge isn’t just for show, either. Equipment is generous, with highlights including a fixed panoramic sunroof with an electric sunshade, leather-appointed upholstery, a heated steering wheel, and heated, ventilated and massaging seats not just in the front, but for the outboard seats in the second row as well - a feature that hasn’t gone unnoticed by my nine-year old.

Technology is a clear focus. There’s a 10.25-inch digital instrument cluster, a large 15.6-inch touchscreen multimedia system and a 26-inch augmented reality head-up display, alongside wireless Apple CarPlay and Android Auto, a 50W wireless charging pad and a 21-speaker DiSound audio system. BYD also includes 2GB of data per month for the first two years to support its 4G connectivity and over-the-air updates.

Practical touches round things out, with keyless entry and start, NFC card access and a digital key via the BYD app, a powered tailgate, vehicle-to-load (V2L) capability, rain-sensing wipers, sound insulation for the front doors and windscreen and three-zone climate control.

The Model Y L gets Tesla’s dual-motor AWD powertrain, with two electric motors producing a total 378kW and 590Nm. That’s enough, Tesla says, to knock off the sprint to 100km/h in five seconds flat.

The BYD Sealion 8 Premium is all-wheel drive and pairs a 1.5-litre, four-cylinder, turbo-petrol engine with two electric motors, one on each axle. Combined outputs sit at a hefty 359kW and 675Nm, which comfortably out-muscles its key rivals.

Those figures do drop back to a more modest 110kW and 220Nm when running on the petrol engine alone.

Performance is strong for a large family SUV, with a claimed 0-100km/h sprint time of 4.9 seconds. You can toggle between pure EV and hybrid modes depending on the drive, which adds a layer of flexibility that suits short daily trips and longer highway runs.

Tesla is always a little vague when it comes to the size of its batteries, but reports point to the Model Y L carrying a 84Wh (useable) NMC battery.

Whatever the specifics, the range is strong, with Tesla promising a 681km driving range on the WLTP combined (urban/extra-urban) cycle.

It’s also set up for 250kW DC fast charging, which should see you take on 288km in 15 minutes, according to Tesla.

Charging is handled via a Type 2 CCS port, with support for up to 11kW on AC and up to 74kW on a DC fast charger. BYD claims a 30 to 80 per cent recharge can be done in as little as 20 minutes under ideal conditions.

The 35.6kWh lithium iron phosphate (LFP) battery is a standout, delivering a claimed electric-only driving range of 152km on the NEDC cycle. That figure is on the optimistic side compared to WLTP testing, but even with that in mind, it remains an impressive number for a plug-in hybrid of this size.

With a full battery, the combined fuel consumption is rated at just 1.0L/100km, translating to a theoretical driving range of over 1000km. Real-world results will vary depending on how often you’re able to charge and the type of driving you’re doing, but after a week that included a fair stretch of highway driving, my trip computer was showing 6.3L/100km. Overall, it’s a solid result, particularly for something with this level of performance.

Honestly, it feels like the Tesla Model Y has grown up. I didn’t love earlier iterations of this car and I found the Performance to be fast but lacking any emotional fizz.

This one, though, feels solid and composed, and the power on tap (of which there is ample) is more about effortless progress than it is attempting to offer sports car excitement.

The steering is now nicely weighted and feels direct enough without being too sharp, and the cabin is well insulated, with often the slightly off-putting sort of rubbing noise the steering wheel makes when you turn it the only intrusive sound.

One drawback is a ride that definitely errs on the side of firm. This Model Y L gets electronic damping designed to iron out some of the more jagged stuff, but it still feels brittle in places, and you can definitely feel some sharpness in the cabin. Now, to be fair, it’s not too firm for me, but it might be for you.

Another is a bizarre turning circle which constantly reminds you you’re driving a big bus, especially when you try to complete a tight three-point turn.

But despite its stretched dimensions, I found the Model Y L easy to drive and park in the city, and once you're up to speed with Tesla's operating system (there's no Apple CarPlay or Android Auto), then the screen is pretty easy to use, too.

On-road performance is where things become a bit of a mixed bag. There’s no denying the Sealion 8 Premium is quick and it leans more heavily into its EV character than many large plug-in hybrids. It’s quiet in hybrid mode and responsive off the mark, which makes it easy to keep pace in traffic and overtake when needed. For something of its size, it also does a good job of masking its weight on the move.

Regenerative braking is offered in two levels, but even the stronger setting feels fairly mild. The upside is smoother low-speed driving, with none of the abruptness you sometimes get in hybrids, and it does still recover a decent amount of energy, particularly on longer descents.

Where it falls short is in its overall dynamics. The steering and suspension are tuned for comfort, which results in a soft, slightly floaty feel on the road. It’s not unpleasant and around town it actually suits the car’s brief, but there’s a noticeable lack of feedback and control if you’re expecting something more composed.

Visibility and driver positioning also take some getting used to. The forward view is decent, but the pillars are quite thick and it can be difficult to find a driving position that doesn’t feel a little enclosed.

Judging the edges of the car isn’t always intuitive, and while the 360-degree camera is clear, its perspective can feel slightly off. Objects tend to appear much farther away than they are, which isn’t the most reassuring combination when you’re trying to manoeuvre in tighter spaces.

The BYD Sealion 8 is yet to be tested by ANCAP and therefore remains unrated at this stage. That said, it comes equipped with a comprehensive suite of safety features, along with nine airbags including side chest airbags for the front and second rows.

Standard equipment includes seatbelt reminders for all seating positions, front and rear parking sensors, driver attention monitoring and alert, tyre pressure monitoring, traffic sign recognition and autonomous emergency braking. It also features front and rear collision warning, blind-spot monitoring, rear and front cross-traffic alert and side exit assist.

On the road, however, some of the active safety systems are less polished in execution. The adaptive cruise control can feel abrupt when slowing down and slow to regain speed, while the steering assist can be overly reactive through corners. Lane keeping also lacks consistency, with the system not always engaging as expected.

For families, child seat provision is strong, with four ISOFIX anchor points and five top tether mounts across the cabin, along with child presence detection.

Tesla warranty is a these-days-underwhelming five years and unlimited kilometres, while the high-voltage battery is covered for eight years or (a wildly specific) 192,000km.

There’s also five years' of roadside assistance, including puncture repair (a good thing, given the lack of a spare wheel). I also couldn’t find a puncture repair kit and later research suggests Tesla sells them, rather than provides them as standard.

Tesla servicing is condition-based, so there’s no fixed schedule, with a summary on the car’s touchscreen providing a record of when vehicle maintenance was last carried out and prompts for when they should be performed next.

In the absence of a combustion powertrain the emphasis is on things like wheel rotation, balancing and alignment, brake fluid testing, air-con servicing, camera precision, radiator cleaning and high-voltage battery maintenance.

Expecty a ‘Vehicle Health Check’ to come in under $300 with ‘General Diagnosis’ at around $270 per hour.

BYD offers the Sealion 8 with a six-year/150,000km warranty and an eight-year or up to 160,000km battery warranty. Both terms are competitive for its class.

Service is recommended every 12 months/20,000km with each workshop visit averaging a solid $596 for the first five years (year four is $1360). Accessing a BYD service centre is fairly easy as there are around 70 centres nationwide now.

BYD recommends premium unleaded petrol (95RON) to be used for the Sealion 8.