Porsche Panamera vs Audi S6

What's the difference?

While we didn’t get to sample the full breadth of the range, our time in the base Panamera demonstrated that while it’s the most overlooked member of the Porsche family it might also be the most under-rated.

While it may not be the most spacious luxury sedan it does offer ample space and combines it with performance and handling that’s hard to beat. The price drop should help make it a more appealing prospect, although at nearly $200,000 it’s still clearly a premium prospect for a lucky few.

We adore the new S6 sedan. It looks great, feels comfortable and goes like stink all at the same time. What’s not to like?

It also helps that it is relatively good value, safe and practical by large-sedan standards, so it’s a bit of a no-brainer.

But will buyers be quick to dismiss the new S6 sedan because it’s not a more practical SUV? Time will tell, but we hope not.

Does the new Audi S6 sedan represent the best mix of executive style and boy-racer performance? Tell us what you think in the comments below.

When the second generation Panamera arrived in 2017 it was widely praised for its design. The new model allowed Porsche’s stylists to tidy up the somewhat puffy design of the original whilst still retaining a clear family link to the 911.

For this mid-life update Porsche has only made some minor nip and tucks rather than a major facelift. The changes centre around the front end, where the 'Sport Design' package that was optional is now standard across the range. It has different air intakes and larger side cooling openings for a more dynamic look.

At the rear there’s a new light strip that runs across the boot lid to connect to the LED tail-lights, creating a more seamless appearance. 

The Turbo S also gets a unique front end treatment, to further separate it from the previous Turbo. It gets even larger side air intakes that are connected via a body-coloured horizontal element so it stands out from the rest of the range.

Overall it’s hard to fault Porsche’s decision to not meddle in the design too much. The shape of the Panamera, like a stretched 911 in silhouette, has grown on people over time and the changes they made for the second generation, making it tauter and more athletic in appearance, didn’t need change for the sake of change. 

To these eyes, the new S6 sedan is very attractive, albeit not outlandish, in keeping with its executive focus.

Up front, the subtly aggressive S body kit immediately comes into frame, with the bumper sporting sinister-looking side air intakes.

And, of course, there’s Audi’s signature Singleframe, which is not only large and in charge, but also finished in gloss-black, like many of the S6 sedan’s exterior design elements.

Below the heavily creased bonnet, the HD Matrix LED headlights look both angry and sophisticated, with their integrated LED daytime running lights (DRLs) providing a crisp signature.

Around the side, the S6 sedan goes about its business quietly, but its blistered wheelarches do add some bulk and help to accentuate its strong shoulder line.

And then there are the thick skirts and 21-inch alloy wheels (with a space-saver spare), which have a sporty twin five-spoke design. It’s all very classy.

Speaking of which, the rear end is arguably the S6 sedan’s best angle thanks to its wicked LED tail-lights, which have a segmented signature.

The chunky bumper below incorporates a diffuser element that houses the quad exhaust tailpipes, while a blink-and-you’ll-miss-it bootlid spoiler rounds out the look.

Inside, the S6 sedan is a technological tour de force, with 10.1- and 8.6-inch touchscreens dominating its centre stack. The former is responsible for most of Audi’s latest multimedia system’s functions, while the latter takes care of the climate controls.

This set-up works pretty well, although a few too many taps are required for certain functions, and then there’s the issue of the glass display coverings, which are absolute fingerprint magnets alongside the gloss-black accents used throughout.

That said, the 12.3-inch digital instrument cluster and windshield-projected head-up display on hand are brilliant. In fact, they set the standard for the entire industry thanks to their design and breadth of functionality.

The S6 sedan does, of course, feel a little bit more special than the regular A6 inside, with the obvious additions being the front sports seats, which are covered in supple Valcona leather alongside the armrests. They even have diamond-stitched inserts.

Then there’s the obligatory flat-bottom steering wheel (with paddle-shifters), which is trimmed in Nappa leather alongside the gear selector, upper dashboard, door shoulders and knee rests. Indeed, hard plastics are hard to find here.

Meanwhile, a black headliner adds to the sportiness alongside the black Alcantara door inserts, but the cabin is otherwise a familiar (read: classy) affair.

As the limousine of the Porsche family there’s a big emphasis on space and practicality for the Panamera. But there’s a big difference between a Porsche limo and the rest of the German ‘Big Three’, which is why the Panamera’s closest rivals are the sportier A7/8 Series/CLS and not the bigger A8/7 Series/S-Class. 

The Panamera isn’t small, stretching more than 5.0m in length, but because of its 911-inspired sloping roofline rear headroom is compromised. Adults under 180cm (5' 11") will be comfortable but anyone taller may find their heads bumping the roof.

The Panamera is available as both a four- and five-seater, but in a practical sense it would be hard to carry five. The rear middle seat is technically available with a seatbelt but heavily compromised by the rear air-vents and tray that sit on the transmission tunnel and effectively remove anywhere to put your legs.

On the plus side, the outboard rear seats are excellent sports buckets, so they offer great support when the driver exploits the Panamera’s sporty chassis.

This only applies to the standard wheelbase model, the Executive adds 150mm to its wheelbase which primarily helps create some more rear legroom. But we didn’t get a chance to test that for ourselves on this initial launch drive, so we can’t verify Porsche’s claims.

Those in the front get excellent sports seats across the range, offering lateral support whilst still being comfortable.

Measuring 4954mm long, 1886mm wide and 1446mm tall, the new S6 sedan is a large sedan in every sense of the term, which is mostly good news when it comes to practicality.

Cargo capacity is decent, at 520L, but can be increased to an undisclosed amount with the 40/20/40 split-fold rear bench stowed.

Speaking of the boot, there are four tie-down points and a cargo net to help secure loose loads, while a bag hook and a side storage net are also on hand, alongside a 12V power outlet. Bulkier items will, however, be confronted by a decent load lip.

In-cabin storage options are numerous, but not all are effective. The glovebox is well-sized, while the driver-side cubby is surprisingly large, but the central bin is shallow, mostly taken up by the wireless smartphone charger, two USB-A ports and the SD and SIM card readers.

A pair of cupholders is located in the centre console, with a 12V power outlet found in between, while the front door bins can accommodate one regular bottle each, just like their rear counterparts.

In the second row, there’s a fold-down armrest with two more cupholders as well as a shallow storage tray, while cargo nets are affixed to the front seat backrests.

The rear bench is pretty comfortable, with four inches of legroom available behind my 184cm driving position alongside decent toe-room. Headroom is also good, with about two inches on offer.

That said, three adults sitting abreast won’t enjoy the experience, due to the large transmission tunnel, which makes for limited footwell space. At least they’ll have access to a couple of USB-A ports and a 12V power outlet, below the central air vents.

For reference, child seats can be fitted to the outboard seats via top-tether and ISOFIX anchorage points.

The new S6 large sedan is priced from $149,900 plus on-road costs and is far better value than before, even if it does command a $33,900 premium over the regular A6's flagship variant.

Compared to its predecessor, the new S6 sedan is $21,480 cheaper, while Audi Australia claims it has also added $20,000 worth of kit.

Standard equipment not already mentioned includes metallic paintwork (our test vehicle was finished in Tango Red), dusk-sensing lights, rain-sensing windshield wipers, soft-close doors, auto-folding side mirrors with heating, rear privacy glass and a hands-free power-operated bootlid.

Inside, satellite navigation with live traffic, Android Auto and wireless Apple CarPlay support, digital radio, a 705W Bang & Olufsen 3D sound system with 16 speakers, a panoramic sunroof, keyless entry and start, power-adjustable front seats with heating, a power-adjustable steering column, four-zone climate control, an auto-dimming rearview mirror and LED ambient lighting feature.

Of note, buyers can opt for the $7700 Dynamic Package that bundles in speed-sensitive electric power steering, a rear limited-slip differential and all-wheel steering. It was not fitted to our test vehicle.

In terms of rivals, the BMW M550i sedan is identically priced, while the Mercedes-AMG E53 sedan is much more expensive, at $173,800. The S6 sedan arguably has the former beat on value but loses the performance battle due to its 390kW/750Nm 4.4-litre twin-turbo V8.

As mentioned earlier there’s a smorgasbord of powertrains for the Panamera range with a variety of V6 turbo, V8 turbo and hybrid variants of both to choose from.

The entry-level model, known simply as Panamera, gets the 2.9-litre twin-turbo V6 making 243kW/450Nm and paired to an eight-speed dual-clutch transmission and sending drive to the rear-wheels. 

Step up to the Panamera 4, 4 Executive and 4 Sport Turismo and you get the same engine and transmission but all-wheel drive.

The Panamera 4 E-Hybrid range (which includes Executive and Sport Turismo) has the same 2.9-litre twin-turbo V6 but adds a 100kW electric motor. 

That means a combined system output of 340kW/700Nm, driving through the same eight-speed dual-clutch and all-wheel drive system as the non-hybrid variants.

The Panamera 4S E-Hybrid gets an upgraded 17.9kWh battery, replacing the old model’s 14.1kWh version. It also gets a more powerful version of the 2.9-litre V6, tuned to make 324kW, which ups the total output to 412kW/750Nm; again with the eight-speed dual-clutch and all-wheel drive. 

The Panamera GTS uses the brand’s 4.0-litre twin-turbo V8 engine, tuned to make 353kW/620Nm, also with the eight-speed ‘box and all-wheel drive. 

The Turbo S uses the same engine but it gets a new tune to bump performance to 463kW/820Nm; that’s a 59kW/50Nm increase over the old model’s Turbo, hence Porsche’s justification in adding the ‘S’ to this new version.

And if that’s still not enough grunt, the Panamera Turbo S E-Hybrid adds the 100kW electric motor to the 4.0-litre V8 and the combination produces 515kW/870Nm.

Interestingly, despite the extra power and torque, the Turbo S E-Hybrid isn’t the fastest accelerating Panamera. The lighter Turbo S does the 0-100km/h sprint in 3.1 seconds, while the Hybrid takes 3.2 seconds. 

However, the 4S E-Hybrid does manage to out-accelerate the GTS despite using the V6 engine, taking just 3.7 seconds compared to the 3.9 seconds it takes the V8-powered GTS.

But even the entry-level Panamera still does a very rapid 5.6 second 0-100km/h dash, so none of the range can be called slow.

The new S6 sedan is powered by a hard-hitting 2.9-litre twin-turbo V6 petrol engine that produces a strong 331kW of power from 5700-6700rpm and a punchy 600Nm of torque from 1900-5000rpm.

Compared to its aforementioned predecessor, power is unchanged, while torque has increased by 50Nm.

This unit is mated to a 48V mild-hybrid system that includes a trick Electric-Powered Compressor (EPC), which helps to reduce its turbo lag.

A reliable eight-speed torque-converter automatic transmission is responsible for swapping gears, while drive is sent to all four wheels via Audi’s rear-biased quattro system.

This combination helps it sprint from a standstill to 100km/h in an impressive 4.5 seconds, while its top speed is electronically limited to 250km/h.

We didn’t get a chance to test all the variants and run the numbers against Porsche’s claims. Again, in an unsurprising development the hugely diverse range of powertrains leads to a wide spread of fuel economy numbers. 

The leader of the pack is the 4 E-Hybrid which uses just 2.6 litres per 100km, according to the company, just ahead of the 4S E-Hybrid with a 2.7L/100km claim. Despite all of its performance the Turbo S E-Hybrid still manages to return a claimed 3.2L/100km.

The entry-level Panamera we spent the majority of the time in uses a claimed 9.2L/100km. The Panamera GTS is the least-efficient, with a claimed 11.7L/100km return, which puts it ahead of the Turbo S and its 11.6L/100km figure.

The new S6 sedan’s fuel consumption on the combined-cycle test (ADR 81/02) is 8.4 litres per 100 kilometres, while claimed carbon dioxide emissions are 197 grams per kilometre. Both figures are pretty keen given the level of performance on offer.

Audi says the aforementioned 48V mild-hybrid system reduces fuel consumption by 0.4L/100km thanks to its coasting ability, which sees the engine turn off for up to 40 seconds between 55km/h and 160km/h. It also engages idle-stop from 22km/h.

In our real-world testing, we averaged 14.4L/100km over 100km of driving skewed towards country roads over city traffic, with limited highway time. It’s worth noting that my spirited driving inflated this result. That said, while its fuel consumption is not as bad as it appears, this is still a thirsty sedan.

For reference, the S6 sedan’s 73L fuel tank takes 98RON petrol at minimum.

This is where the Panamera really excels. With every vehicle it builds, Porsche works to make it drive as close to a sports car as possible, even if it's an SUV or, in this case, a large, luxury sedan.

Although Porsche has an extensive range, our test drive was primarily focused on the entry-level model. That’s no bad thing as it’s likely to be the biggest seller in the range, but also because it’s an excellent example of a sports sedan done well.

It may be the first rung on the ladder, but the Panamera doesn’t feel like it's basic or missing anything important. The engine is a gem, the chassis is well sorted and the standard equipment level of Australian models is higher than average.

The 2.9-litre V6 twin-turbo makes a nice noise, a melodious V6 burble, and delivers plenty of punch when needed. Even though it tips the scales at more than 1800kg the V6 with its 450Nm of torque helps punch it out of corners with intent.

The corners is where the Panamera really shines. Even by the highest sports sedan standards the Panamera is a class-leader thanks to all of Porsche’s decades of know-how being poured into its development.

Point the Panamera at a bend and the nose responds with the kind of precision you expect from a sports car. 

The steering provides accuracy and loads of feedback, so you can place the car accurately despite its size. 

You do notice its size and weight as you get into the middle of the corner, but that’s no different from any of its rivals as you can’t fight physics. But for a luxury sports sedan, the Panamera is a star.

To add another layer to its appeal, the Panamera rides with excellent poise and comfort despite its sporting nature. 

Often sports sedans tend to focus too much on handling and stiffer suspension settings at the expense of ride comfort, but Porsche has managed to strike a great balance between the two seemingly opposing characteristics.

The S6 sedan has no right being this good in a straight line and around corners…

Much of its success is owed to the 2.9-litre twin-turbo V6, which is now one of my favourite engines being built today. Simply put, it absolutely hammers.

Punch the accelerator from a standing start and it doesn’t take long for 600Nm to be on tap all the way through, and just a little bit beyond, the mid-range.

Occupants are firmly pressed into their seats as the S6 sedan sprints towards the horizon with vigour. Soon enough, 331kW arrives and hangs around until just prior to the redline.

Needless to say, this acceleration is addictive, and the EPC deserves some of the credit, as it effectively mitigates any dreaded turbo lag and ensures the engine is always seemingly on boost.

But we also need to acknowledge the eight-speed torque-converter automatic, which is a real beauty. Gear changes are nice and smooth, which is great, but what’s even better is their relative quickness – dual-clutch transmissions be damned!

Of course, extra performance can be extracted by switching between the engine and transmissions’ settings but, rest assured, they both stand up, no matter what.

However, we’d suggest spending time in the former’s most aggressive setting, as it unleashes the sports exhaust system, which sounds unreal.

Upshift with intent and you’re met with a booming ‘brap’. Downshifts and the overrun will even gift you a series of pops. In fact, the S6 sedan soundtrack sounds strangely similar to that of the five-cylinder RS3, and we have absolutely no problem with that.

Better yet, the S6 sedan has an appetite for corners, with its neutral handling a standout, partly thanks to its hard-working rear-biased quattro all-wheel-drive system, which works in tandem with all the other electronics to ensure there is plenty of grip at any given time.

This controlled driving pleasure is enhanced by the electric power steering on hand, which has a variable ratio. At low speed, it’s nice and light, but those after more heft can always switch to another one of its settings, which become progressively heavier… arguably too heavy.

Feedback through the wheel is also good, while the steering itself is pretty direct, lending itself to sporty driving, which, of course, is half of the S6 sedan’s mantra.

Coming into corners, braking performance is solid, thanks to the massive 400mm front and 350mm rear discs with red callipers, so the driver is brimming with confidence at every turn, even though there’s an unladen weight (with 75kg driver and luggage) of 1985kg to manage.

But let’s not forget the S6 is an executive sedan, so it has to ride like one. Thankfully, it does. The independent five-link suspension has air springs and adaptive dampers, which serve up comfort in spades, especially at high speed.

Its firm tune does come into frame when travelling on unsealed or uneven roads, with this exacerbated by the large 21-inch alloy wheels, which have a penchant for catching sharp edges.

ANCAP awarded the A6 range (including S6) a maximum five-star safety rating in 2018.

Advanced driver-assist systems extend to autonomous emergency braking with pedestrian detection, lane-keep and steering assist, blind-spot monitoring, rear cross-traffic alert, adaptive cruise control with stop-and-go functionality, high-beam assist, driver attention alert, hill-start assist, tyre pressure monitoring, surround-view cameras and front and rear parking sensors. Yep, buyers aren’t left wanting here.

Other standard safety equipment includes six airbags (dual front, side and curtain), electronic stability and traction control systems, anti-skid brakes (ABS), brake assist and electronic brake-force distribution, among others.

Service intervals are annually or every 15,000km (whichever comes first) for routine oil changes, with every second year a more significant inspection. 

Prices vary state-to-state due to different labour costs, but as an indication Victorian residents pay $695 for the annual oil change, while the inspection costs $995. 

There are other notable charges you should factor in, including brake fluid every two years for $270, while every four years you need to change spark plugs, transmission oil and air filters which add up to an extra $2129, on top of the $995.

The Panamera is covered by Porsche’s typical three-year warranty/unlimited kilometre, which used to be the industry standard but is increasingly becoming less typical.

The S6 sedan comes with Audi Australia’s three-year/unlimited-kilometre warranty, which falls short of the premium market’s relatively new five-year standard that was set by Genesis and followed by Mercedes-Benz.

Three years of roadside assistance is also bundled in, although this term can be extended up to nine years if the vehicle is serviced at an authorised dealership, which is great.

Speaking of which, service intervals are every 12 months or 15,000km, whichever comes first. Capped-price servicing plans are available, costing $2350 for three years/45,000km or $4110 for five years/75,000km. They’re pricey, but you weren’t expecting the opposite.