Jaguar XF vs Audi S8

What's the difference?

With that iron fist wrapped in a velvet glove wrapped in bubble wrap engine, excellent ride and gorgeous looks, the XF Sportbrake ticks all the boxes. Apart from the entry price and options prices, there are few objective reasons not to buy the car. It's just as good as any of its German competition and arguably the prettiest of the lot.

Should Jaguar have taken the dive? Given the XF Sportbrake is a luxury wagon done right, yes.

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.

The second-generation XF is a very pretty car. A few carmakers have a had a crack at that four-door coupe idea, but Jaguar's Ian Callum got it right first go. You might expect the wagon to be a bit dumpy but it's far from it. That's not to say wagons can't be good looking - many are better-looking than the car they're based on (the weirdly proportioned Golf wagon being the exception to the rule). The XF sedan just looks right.

Anyway, the Sportbrake is basically the same until behind the B-pillar, with the roof continuing on to steeply raked tailgate glass. Obviously the lights are different back there but it's a nicely integrated job, it doesn't look like a dodgy extension. Rolling on the optional 20-inch wheels it looks amazing - low, long and well-proportioned. Unfortunately, it's more than vaguely hearse-like in black (the only First Edition colour).

Inside is standard XF, with the obvious exception of the rear seats and the big open load area. With this First Edition's glass roof the cabin seems infinite. Either way it's big and comfortable, although fit and finish could be a bit tighter.

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.

Front and rear passengers enjoy plenty of space. Storage includes a not-quite-big-enough-for-a-phone tray ahead of the rotary dial gear selector and a pair of cupholders. Those in the rear have plenty of space, except for the middle seat occupant who must straddle a stout transmission tunnel. The rear armrest holds a pair of cupholders and the doors have slim pockets.

The boot holds 565 litres with the seats in place and "up to" 1700 litres with the seats down - that latter figure does not feel like a VDA number.

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.

For $260,000 there is a lot to get through, as there is on the less sporty A8. Start with huge 21-inch alloys, 17-speaker Bang & Olufsen stereo, panoramic sunroof, matrix LED headlights with laser lights, soft-close doors, acoustic glazing, leather trim, S front seats, extra leather over the A8, Alcantara headlining, carbon inlays, four-zone climate control, heated and cooled front seats, 'Virtual Cockpit' with S mode, and a tyre repair kit.

You also get active suspension, a sport version of the 'quattro' all-wheel drive system (with a sport differential), and a walloping great twin-turbo V8 to get you moving.

A massive touchscreen on the centre stack (familiar in Q8, A7 and Q7) hosts Audi's 'MMI plus' system, which is very good and does away with the console-mounted rotary controller. It also has wireless Apple CarPlay to go with the console-bin wireless charging pad. Android Auto is still USB. 'Audi Connect plus', now in full-featured glory, is also along for the ride.

Another technical highlight is the active noise cancelling which is meant to reduce the noise in the cabin the same way noise cancelling headphones do.

There's a clever rear seat remote control, which is a little detachable tablet to allow those who are being chauffered to faff around with various settings.

Our car had the $13,900 'Sensory Package', which adds a 1820-watt B&O 3D sound system with 23 speakers, electrically adjustable outer rear seats along with heating, cooling and massage function, and full leather.

The First Edition ships with Jaguar's 3.0-litre twin-turbo diesel V6. Good for 221kW and a prodigious 700Nm, power heads to the rear wheels via an eight-speed ZF automatic.

With all that power and torque, the XF Sportbrake cracks 100km/h from rest in 6.6 seconds.

The air suspension means you can tow up to 2000kg with a braked trailer.

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.

Jaguar claims a combined-cycle figure of 5.9L/100km. Our time with it was mostly shuttling around the suburbs with a couple of highway runs and we managed a respectable 8.3L/100km.

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.

There's no getting away from the size and heft of the Sportbrake. Where a four-cylinder sedan comes in under 1600kg - not bad for an almost five-metre-long car - up here at the top it's well over 1800kg. With big wheels and a long wheelbase it's not going to win any wards for manoeuvrability, with a big turning circle and a length that's challenging to shopping centre car parks.

The 3.0 V6 twin-turbo is a fantastic unit. It can be a bit noisy when cold but it's super smooth and with all that torque it crushes overtaking with little need for advanced planning. The Sportbrake wafts along, lazily turning over in traffic and keeping the vibe calm.

Despite those big wheels, the ride is excellent. Even when in Sport mode, it's a rare bump or surface that will cause drama. It's very comfortable and very quiet, almost to the level of the XJ limo.

If you do fancy a bit of amusement, the V6 and well-sorted chassis are ready to play. In reality, Sport mode is where both myself and my wife left the car the whole time we had it. Both of us found the steering a little too light and preferred the more lively throttle response. The XF features torque vectoring using the brakes and coupled with a well-judged stability and traction control system, it delivers a good impression of a sporty sedan.

But the XF is best when you keep it relaxed. Both in town and in the cruise, it's a lovely, quiet place to be and a relaxing, undemanding drive. 

Only a couple of things were annoying - the light steering we've already covered. The heated windscreen was more reflection-prone so the head-up display could be hard to see in some lighting conditions. And sometimes it beeped for no apparent reason, which I eventually traced to the blind-spot warning.

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.

The S8's considerable safety equipment list includes nine airbags, ABS, stability and traction controls, forward AEB (up to 250km/h), reverse cross-traffic alert, lane departure warning, various collision mitigation and protection systems, exit warning, lane keep assist, active cruise control and on, and on, and on.

The rear seat's centre airbag is terribly clever, popping up between passengers to stop you knocking heads. Another clever trick is the way the car detects a side impact is about to happen, boosting the height of the side about to cop it to try and get the sills to take more of the impact, rather than the door.

Given the relatively niche status of the A8, let alone the S8, there is no ANCAP crash test or safety rating. One imagines given the ton of safety gear a five star rating is all but assured. Even the US IIHS gave the A8 a miss.

Jaguars are offered with a three-year/100,000km warranty with a matching roadside-assist package. You can purchase a five-year/130,000km service plan for an oddly reasonable $2200. Even more reasonable are the service intervals - 12 months or 26,000km (!).

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.