BYD Sealion 8 vs Xpeng G6

What's the difference?

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.

I can’t say this was the verdict I was expecting going into the XPeng G6 with no major expectations, but I really like this car. It's not only a fantastic EV with future-proof tech, but it’s practical, stylish and a great car to drive.

Mainstream carmakers should be worried if we’re seeing cars this good from brands that have only been building vehicles for a few years.

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.

Don’t dismiss the XPeng G6 as just another generic “jelly-bean” shaped EV. Yes, there’s a roundness to the G6’s body that’s very much the trending look but the details in the design are quite special. 

JuanMa Lopez is XPeng’s VP of design, having been in charge of exterior design for Ferrari and there are sportscar touches to the G6’s styling that point to his involvement.

Look at the G6 from that rear three-quarter angle. The way the roofline curves into the tailgate is superb and very Porsche-like.

I also like the G6’s frameless side windows, the expansive windscreen and wide bonnet, the alloy wheels (and not plastic aero hubcaps) and LED strip lighting.

Actually the LED daytime running light strip that runs the width of the bonnet is new for this update and so is the sleeker tail-light design, too.

The G6’s cabin is modern and minimalist but unlike other new EV brands it’s also refined and that goes for the look and the feel of the materials and styling.

The soft Nappa leather seats lift the cabin’s look and feel to a luxurious level.

However, the white interior of our car is not the most family friendly option and we had a strict no-eating-in-this-car policy with our five- and 11-year-old. That wasn't very fun for anybody so if this was our car we’d be choosing the Dark Grey upholstery and eating hot chips without stressing.

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 G6’s cabin is spacious to the point of cavernous, despite its not-so enormous exterior dimensions. t’s 4758mm long which is considered medium sized and almost identical to the length of the Model Y and BYD Sealion 7. 

So space up front is good even for giants like me and second-row space is outstanding with excellent leg-, head-, and elbow room.

Parents beware though, the window sills in the G6 are oddly high and children may struggle to see out, but to me that feels safer than the opposite.

Storage is decent, too, with oversized door pockets along with cupholders, front and back, and there’s a storage bay under the floating centre console.

A standout feature is the proximity unlocking which picks up the key from about five metres away and unlocks the car, popping the door handles out. The safety and convenience of this can’t be exaggerated and the auto locking feature when you walk away is great for when you have armfuls of grocery bags or kids… or both.

We could have done without the giant glass roof, though. During the warm Australian spring days the cabin heated up fast under than huge sheet of glass even with the climate control trying its hardest to keep us cool. Yes, it is tinted but I felt like I needed to wear a hat when the sun was directly overhead and there’s no shade or screen.

A 517-litre boot (measured to the parcel shelf) is bang on the cargo capacity offered by rivals such as the BYD Sealion 7, but unlike that competitor, the G6 doesn't have a front boot.

The G6 doesn’t have a spare wheel, just a puncture repair kit.

The XPeng G6 RWD Long Range sits in the middle of the line-up and lists for $56,800, before on-road costs.

That’s a pretty remarkable price because it not only does it undercut the entry-level Tesla Model Y by about $1000, it's about $10,000 less than the Model Y Long Range.

It can’t be beaten on price by Zeekr’s 7X either, which is about $64K for the RWD Long Range.

BYD’s Sealion 7 comes in at about $55K but doesn’t quite have the range of this G6.

The G6 RWD Long Range’s standard features list includes:

• Nappa leather upholstery
• Heated and ventilated front seats
• 20-inch alloys wheels
• New higher-resolution 15.6-inch central media screen
• Apple CarPlay and Android Auto
• 18-speaker stereo
• Dual phone chargers
• Proximity unlocking with a bluetooth phone key and NFC card
• Dual-zone climate control
• Privacy glass
• Panoramic glass roof

Compared to rivals such as the Tesla Model Y and BYD Sealion 7 I think this grade of the G6 is super close in features but better in value.

The G6 has Nappa leather seats while the Model Y and BYD have synthetic upholstery. The difference in how it feels is huge.

The G6 also comes with bigger 20-inch wheels, that look sportier than the 19s of the Model Y and Sealion 7's.

And if we're getting into it the electrical architecture of the G6 is superior from a charging speed perspective than the others. So you're getting more bang for your buck there, too.

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.

The Rear Wheel Drive Long Range features a single motor making 218kW and 440Nm driving the rear wheels with the largest battery. To me that’s the ideal setup because you don't really need all-wheel drive which will drain power and reduce range for the sake of better traction and quicker acceleration.

Besides, the 0-100km/h time of the RWD Long Range is 6.7 seconds and that’s plenty. By the way, the 1984 Holden VK SS Commodore with a V8 had exactly the same sprint time and it had less power and torque than the XPeng G6. What I’m saying is, you’ll be fine with the grunt.

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.

The G6 Rear Wheel Drive Long Range has an 80.8kWh battery and XPeng says this gives it a driving range of up to 525km. After a week of our regular driving (approximately 215km) we had 58 per cent of our battery charge left.

Energy usage was excellent, with our trip computer reporting 13.8kWh/100km, which is better than XPeng’s official claim of 17.9kWh/100km.

The big news for the update is the change of battery from Nickel Manganese Cobalt (NMC) to Lithium Iron Phosphate (LFP) which reduces range but lowers production costs.

 LFP batteries also have less thermal runaway and are therefore safer.

The other big news is an update in electrical architecture from 400V to 800V and this means much faster charging. The G6 RWD Long Range can now charge from 10-80 per cent in 12 minutes flat at a DC rate of 451kW.

That of course requires a 450kW charger of which there are none. The fastest publicly available in Australia is 400kW and there’s fewer than a handful of them in the country.

But this means the G6 is future-proofed and that’s much better than having an out-of-date car in a couple of years.

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 XPeng G6 RWD Long Range is one of the few new EV brands that's both a great tech package and a great car to drive. Many new EV brands can’t master the combination, or specifically the driving side, which established brands have refined over decades.

The G6 RWD Long Range has a soft ride, but good dynamics. I tried to unsettle it in some of the quicker corners on my regular test route and it refused to even hint at coming unstuck. That’s great for engaging driving but more so for safety where this car feels planted and stable even under pressure.

Steering is light and direct, and the cabin is tranquil even at higher speeds where road and wind noise is also remarkably low.

Honestly I’m quite amazed. I thought the G6 would just be a sophisticated tech device. But it's also a good car to drive.

The XPeng G6 scored the maximum five-star ANCAP safety rating in 2024 and it comes with every bit of tech you can imagine including:

• Front and rear auto emergency braking (AEB)
• Blind spot warning
• Lane keeping assistance
• Auto-lane changing
• Traffic sign recognition
• Emergency lane keeping
• Intelligent high beam
• Forward distance monitoring
• Forward collision warning
• Door opening warning
• Rear cross-traffic alert

I really have to give a shout out to the reversing camera which is superb in its clarity but also its function of identifying stationary and moving cars around you.

There’s also auto parking which is superb, and a remote parking function, too.

And finally, you may be happy to hear that the driver safety alert system in the G6 is quite subtle. Yes there are nudges (audible and vibration) to tell you that you may have slightly exceeded the speed limit or strayed out of a lane, but it's not as sensitive or intrusive as some rivals.

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.

The XPeng G6 is covered by a seven-year/unlimited kilometre warranty and servicing is recommended every 20,000km or 12 months. While there’s no capped-price servicing you can expect to pay about $2000 over five years.

The battery is covered by an eight-year/160,000km warranty which is the industry standard.

There’s good news for owners as well regarding XPeng’s presence in Australia. Xpeng took back distribution of its vehicles from a third party and is selling its car directly with an expansion of the dealer network to 66 locations around Australia.

New owners will also benefit from complimentary roadside assistance and an improved parts supply chain.