Audi S8 vs BYD Sealion 7

What's the difference?

The S8's existence is a source of joy for me because it's not a huge SUV. Yes, it's a huge sedan but it's a reminder that the technological flagship is alive and well, at least in Germany. And the important thing about these cars is the way the toys filter down through the rest of the range. That used to take years but we're seeing this cool stuff a lot more quickly, right down to the A1.

The S8 punches, and punches hard in this rarefied part of an already shrunken section of the market - the twin-turbo V8 matches its German rivals, it's lighter and it's as well-stacked as any of the three. What it doesn't do, however, is shout about itself the way the other two do.  It's the incognito choice.

Not the most comprehensive of tests, I'm afraid, but on first impressions the BYD Sealion 7 feels like a very solid offering that delivers on price and spec, too.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel and meals provided.

The sheetmetal is obviously very restrained given it's an Audi first, and secondly, it's just not done to go wild in this part of the market.

It's an A6 that's joined a gym, but didn't join that weird gym with men that can't run after you when you insult them (don't ask how I know this). Rolling on 21-inch wheels as standard, you can go up to massive 22s if you so choose.

The A8 created a subtle redirection of Audi's passenger car look, with the updated A4 and A6 both picking up on the horizontal bar between the rear lights and the huge grille framed by family lights with signature DRL patterns. The S8 builds on that with subtle S cues but nothing even vaguely shouty.

The interior acreage - or 'cabin', if you will - is very comfortable, but you already knew that. The multi-screen layout was first seen in the A8 and has now found its way into A7, Q8 and Q7 and is, as ever, brilliant to look at and use.

The MMI updates that have found their way into other cars are present and correct. Like the exterior, it's very restrained but not to the point of sparse minimalism, despite the lack of switches and buttons.

I really don't like the steering wheel, though, and I can't put my finger on why. It certainly isn't especially sporty-looking but I wonder if the standard flat-bottomed S wheel just looked stupid.

The materials are beautiful and everything fits together perfectly.

Probably not what you might describe as revolutionary design, the Sealion 7 still presents as a clean, functional and relatively premium-feeling SUV – and one that doesn't look in any way confronting or overly futuristic.

The lights are LED and look sleek in the way they are cut into the body work, and the swept-back roofline, including the rear windscreen spoiler, lends the Sealion 7 an athletic look, too.

Inside, the Sealion 7 is a comfortable and well-trimmed space, with soft-touch materials placed wherever you're likely to interact with the car, and a gigantic central screen that handles tech duties - with some climate control shortcuts that are a nice touch, too.

But most happily of all, there is not one but two screens for the driver; a display screen in the driver's binnacle, and a head-up display, both of which deliver the info you need without having to turn your head.

The cabin is clearly built with rear seat passengers in mind, with rear leg and headroom configured for those continent-crossing drives.

The S8 has plenty of comfort for two rear seat passengers and a few amusing options to while away the hours in traffic or on the autobahn.

That doesn't mean the front seat passengers are in purgatory, with huge but supportive seats adjustable in all conceivable directions.

Front and rear rows score a pair of cupholders and bottle holders while the boot is a handy, if not awe-inspiring, 505 litres.

The Sealion 7 is just over 4.8m long, 1.9m wide and 1.6m tall, and it rides on a near three-metre wheelbase.

The real party trick of the Sealion 7, though, isn’t one you’ll get to enjoy as the driver, it’s all about the back seat. There is oodles, and I mean oodles, of room for rear riders, helped by the wide, flat floor that adds extra space to spread out.

Sitting behind my own 175cm driving position, I have heaps of knee room, plenty of head room, and thankfully the glass roof has a shade, too.

Elsewhere, there are two cupholders in the rear seat divider, USB-C and USB-A charge points, seat heating for backseat riders, and air vents, but no way to control your own temperature in the backseat.

At the boot, you’ll find a very usable, flat-floored 500 litres of luggage space, and you can adjust the floor height to make carrying bulkier items a little easier. There’s a second smaller space in the frunk as well.

The Sealion 7 will be offered in two trim levels — the Premium, at $54,990, and the Performance, at $63,990, both before on-road costs.

That pricing significantly undercuts its key competitor, the soon-to-launch Tesla Model Y Juniper, which also arrives in two trim levels, and lists at $63,400 for the RWD and $73,400 for the Long Range AWD, both before on-road costs.

It should also be pointed out that, while the Tesla Model Y will be target number one, the Sealion 7 also launches into an increasingly congested, and very competitively priced, mid-size electric SUV segment where it will meet models like the XPeng G6, the Deepal S07 and the cheap and cheerful Leapmotor C10.

Both model grades are similarly, and pretty generously equipped, with the Premium scoring 19-inch alloys, LED lighting, a panoramic glass roof and a powered boot.

Inside, there are leather seats (heated and ventilated up front) a leather steering wheel, and dual-zone climate control. Finally, the tech includes a 15.6-inch rotating central touchscreen with Apple CarPay and Android Auto, a 12-speaker stereo, a 10.25-inch driver display and a head-up display, as well as wireless device charging.

The Performance then adds 20-inch alloys, painted front brake covers, a heated steering wheel and heating for the rear seats.

It also has V2L, or vehicle to load, which is one of those things that I’m not sure people are really taking advantage of. And they should, because if you think of the Sealion 7 as a very big mobile battery, this connection is what allows you to use that power whenever you want, for virtually whatever you want. 

Under that long bonnet is a 4.0-litre twin-turbo V8 pumping out 420kW and a diesel-like 800Nm of torque. 

That's a lot, even for this big bruiser. Obviously, being an Audi S-car, it has quattro all-wheel drive, which is fed by an eight-speed ZF automatic. Which is in everything now. Well, just about.

That huge torque figure is available between 2000rpm and 4500rpm while peak power arrives at 6000rpm. The 0-100km/h sprint is despatched in - gulp - 3.8 seconds.

As it's riding on the MLB platform, the mild hybrid system is a 48-volt set-up. A lithium-ion battery in the boot takes charge from the belt alternator/starter, which means the S8 can coast at higher speeds with the engine off and also cut out at 22km/h and under in traffic.

The system can also add up to 60Nm of torque in the right conditions for up to six seconds, and if it happened for me, I didn't notice it.

The Premium model gets a single rear-mounted electric motor, producing 230kW and 380Nm, which is sent straight to the rear tyres. BYD reckons the sprint to 100km/h takes 6.7 seconds. 

But the the dual-motor, AWD Performance adds a second electric motor up front which ups the grunt to 390kW and 690Nm, and lops almost two seconds off the 100km/h sprint, now just 4.5 seconds.  

The 10.5L/100km official figure is, shall we say, optimistic. The launch drive was mostly highway so there's no real information to be gleaned from that, so we'll have to wait for real world fuel figures.

I'd say 12-13L/100km is achievable if you don't like having fun, in which case, the lesser A8 is probably for you.

Audi says the MHEV system saves 0.8L/100km with an early cut-out for the stop-start and the ability to coast on the highway for over half a minute at a time.

Both Sealion 7 models share the same 82.56kWh battery, and the Premium will travel a claimed 482kms between charges on the WLTP cycle. The Performance, with its extra grunt, will cover less distance, with the range dropping to a claimed 456km.

Both feature 150kW DC fast charging, and up to 11kW AC charging, though BYD is yet to confirm charging times.

Driving any of the cars in this segment is a rare treat, whether it's the 'entry level' diesel or this top of the heap sports sedan. My day with the S8 was filled with the usual surprise and delight that only these tech-packed cars can deliver.

Heading out of the Sydney CBD in 'Comfort' mode, the car scans the road ahead and adjusts the active suspension accordingly. You already know it has active suspension because when you pull the door handle, the car lifts by 50mm to make it a bit easier to get in.

The suspension's party trick is flat-topped speed bumps - drive at one, brake a little and sense the way the body feels like it stays exactly where it is in the air but the suspension almost completely flattens the speed hump.

It's uncanny and almost unnatural, with just the tiniest change in altitude and no noise from the suspension.

It also manages the terrible narrow lanes of CBD thoroughfares with ease, the lane keep system letting you know if you're straying.

On to the motorway and you get a feel for its crushing performance. You won't hear much, though - the stereo's noise-cancelling system shuts out almost all tyre noise and consistent wind noise is largely banished, too.

I'm going to admit I gasped when I found some corners. Active suspension bodes well for the tricky stuff, as does the all-wheel steering. Both are exceptionally clever systems for making the car feel a lot smaller in town and in car parks but they're also really good if you want some fun.

But the way the rear-wheel steer adds agility to such a big car is hilarious and clever. While you can't quite chuck it around - and really, you're not buying an A8-sized car for that kind of nonsense - brisk progress is far from intimidating.

Now, obviously, a Ford Fiesta would drive away from the S8 in the really tight stuff but it would take some time to properly shake it. The colossal torque from the V8 hurls even this two-tonne-plus limo out of the corners in a most satisfactory manner.

It's surprisingly agile for a machine more than five metres long and two metres wide. If your passengers are corner enthusiasts, you'll all be having fun in near silence. It's oddly engaging to be moving at pace in such a hushed cabin.

Unfortunately BYD's launch drive program was brief at best - about 40 minutes or so across mostly suburban Adelaide - so please do consider the below a taste test. We will put the Sealion 7 to the proper CarsGuide test when we get it down the track.

In the meantime, the Sealion 7 did impress on first impressions. Our test car was the dual-motor Performance, and the power delivery is smooth, constant and absolutely ample for just about anyone.

In fact, I suspect it's a little too ample. While I haven't driven the single-motor Premium, I suspect that will be the pick of the bunch. It's no slouch either, and it will travel further between charges, plus I suspect the power delivery will be better suited to the nature of this mid-size SUV.

In the Performance, the grunt is plentiful, but the Sealion 7 isn't quite set up to take full advantage of it. I was impressed by the grip and the relative lack of body roll, but it's still heavy, and the tyres still complain when you ask too much of them.

That said, the Sealion 7 felt very well set up for urban and long-distance commuting. The cabin is quiet and refined, and the ride is really impressive, even over rough stuff, with BYD managing to make it feel compliant, but not completely disconnected. Which is a win.

Downsides? The power on offer in the Performance is plentiful, which means merely breathing on the accelerator will see you suddenly collecting speed – something you need to be aware on 40km/h and 50km/h streets.

And when you do lift your foot off the accelerator, the Sealion 7 doesn't decelerate immediately. It feels like it continues pushing forwards for a beat or two.

But in a vehicle as potent as the Performance, that beat or two can take you a fair way down the road.

The Sealion 7 yet to receive an official ANCAP rating, but it has been crash tested, and the brand is confident of a five-star result.

The Sealion 7’s safety kit is all present and accounted for, with its nine airbags joined by a more high-tech offering that includes things like adaptive cruise, lane keep assist, front and rear auto emergency braking (AEB) and blind-spot detection.

Perhaps best of all, though, is that – at least on our brief test drive – none of the active safety systems felt overly intrusive or annoying.

Audi continues to fail to match Mercedes move to a five year warranty, sticking with three year/unlimited kilometre cover. BMW is still doing it too, so maybe Ingolstadt and Munich are playing chicken. 

You can get a five-year service plan for the S8, coming out at $3990 for the duration.

BYD offers a complicated six-year, 150,000km warranty, so just check what is and isn’t covered, and for how long, before taking anything for granted.

The battery is covered for eight years or 160,000km. Servicing is require every 12 months or 20,000kms, and there’s a capped-price servicing program which covers 10 years of ownership.  

BYD’s website has the details for every service, but the most expensive will be $1109 and the cheapest is $246, with most falling somewhere between those numbers.