Nissan 370Z vs Audi S6

What's the difference?

It's hard not to be ageist when it comes to the current Nissan Zed, because 15 years in market (nine if we're generous) is a lengthy stretch in anyone's book. But somehow the 370Z is more than the sum of its parts. It has fantastic front-engine/rear-drive balance, an increasingly rare atmo engine, and a beautiful manual 'box. The value equation is decent, and it's nicely put together. Just don't expect to be dazzled with the latest safety, driver-assist and multimedia technology.

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.

If you want to go all the way back, the 370Z clearly takes its design direction from Datsun's star of the '70s, the original 240Z.

Inspired by Ferrari, and (along with the Toyota 2000GT) a sports-car breakthrough for the Japanese industry, the first Zed's front-engine, long-nose proportions have remained largely intact in successive iterations over the decades.

With a broad, flat nose, distinctively jagged headlights, and steeply raked rear profile, there's no mistaking the 370's signature stance, with pumped-up guards sitting over fat, 19-inch alloy rims.

Sharp-eyed car-spotters will notice the update's new design RAYS forged wheels, smoked front and rear lights, and a similar smoked finish on the exterior door handles.

A new colour, 'Cherry Red' also replaces 'Bordeaux Black' in an eight-shade colour palette. Our test example was finished in 'Gun Metallic'.

Inside, echoes of Zeds past abound, with a trio of hooded gauges (clock, voltmeter, oil temp) sitting in the centre of the dash top, and the tachometer in the middle of a cowled, three-instrument main cluster shaded by an exaggerated tube.

And aside from consciously retro design touches, some elements have been present inside the car for so long they're just... ancient.

For example, old-school orange graphics for the odometer, gear position and trip computer are dated, and the small (7.0-inch touchscreen) multimedia display has the feel of an early noughties edition of Tekken 6.

Forget a digital speedo or head-up display. A CD slot still sits proudly in the centre stack, and matt silver highlights scattered around the cabin are as on-trend as double denim.

And the steering wheel (joined with the instrument binnacle) adjusts for height, but annoyingly, not reach.

That said, friends and family who rode in the car during the week I had the keys all commented on the swoopy exterior and cozy cockpit feel of the interior. So, what do I know?

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.

Two seats means practicality is a relative term when applied to the 370Z. For example, getting in and out is an athletic exercise requiring gymnastic levels of flexibility and poise. As with most low-lying coupes, I found the outer hand on the A-pillar technique helps with swinging down into the car, or lurching up out of it.

Once ensconced behind the wheel, you're confronted with a relatively modest amount of storage space, running to a medium-size glove box, a lidded bin at the rear of the dividing console, a single cupholder, and door pockets incorporating recesses for small bottles only.

There are two lined recesses for soft bags or coats behind each seat, including a fold-out map pocket, but they're not exactly convenient for retrieving things when you're on the move. What's missing is a tray where you can easily stow things likes keys, coins or a phone.

There are also two 12-volt power outlets, a USB port and an aux-in audio connection.

Rear load space is limited to 195 litres, mainly due to the boot's shallow floor (an alloy space-saver spare sits underneath). It does incorporate a cargo blind and four tie-down hooks, but we only managed to squeeze in the largest (105-litre) suitcase from our three-piece hard set, or a combination of the two smaller ones (35 and 68 litres).

We also had a crack at stuffing in the CarsGuide pram (there is a top-tether hook provided for child seat fitment) and managed it with only a couple of beads of perspiration expended.

Forget the nappy-bag paraphernalia, though. The soft bags with all the baby stuff would have to go in the storage bays in the cabin behind the seats.

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.

The 370Z is powered by an all-alloy, 3.7-litre (VQ37VHR), naturally aspirated, quad-cam V6, producing 245kW at 7000rpm and 363Nm at 5200rpm.

Serving in a vast array of Nissan, Infiniti, Renault and Mitsubishi models, the VQ V6 engine series has been around in various displacements for over 20 years.

It features the 'Continuously Variable Valve Timing Control System' (CVTCS) with 'Variable Valve Event and Lift' (VVEL) on the intake side. And while all that may sound new and ultra-high tech, it was actually introduced in 2007.

Transmission choice is between a seven-speed auto (with manual mode and paddles) or six-speed manual gearbox, as tested here. And this 2018 upgrade brings a high-performance clutch from Japanese specialist Exedy.

Drive goes to the rear wheels via a carbon-fibre composite drive shaft, connecting with a viscous limited slip differential (LSD).

Additional features that won't necessarily be music to purists' ears include 'Active Noise Cancellation', and 'Active Sound Enhancement'.

The former monitors and measures engine sounds, using the audio speakers to produce "acoustically opposing signals to cancel undesirable sounds". So, okay, maybe filtering out the messy noise is a good thing.

But at the same time Active Sound Enhancement employs "digital signal processing to enhance the engine note, using the vehicle's sound system to augment or modify the spectrum of select powertrain sounds in the cabin". Yuck.

I can cop a tube that channels a bit of genuine engine noise into the interior, but in this context, the phrase 'digital signal processing' is a turn-off.

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.

Claimed fuel economy for the combined (ADR 81/02 - urban, extra-urban) cycle is 10.6L/100km, the 370Z emitting 249g/km of CO2 in the process.

Over roughly 250km of city, suburban and freeway running, we averaged 15.6L/100km, at the bowser. Far from miserly.

Minimum fuel requirement is 95 RON premium unleaded, although Nissan says "for optimum performance" you should stump up for 98 RON. And just to rub it in, you'll need 72 litres of it to fill the tank.

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.

The Nissan 370Z is actually the car many want the Toyobaru 86/BRZ to be. I can sense some of you spluttering out a sweary response to that notion. But hear me out.

If you, like many others, think the 86/BRZ would be perfect with an extra 50kW/80Nm, just bolt on a turbo or supercharger, and voila. You'll get that extra grunt, but remember, the 86/BRZ was conceived to be light, tactile, and, not least of all, affordable.

Up the outputs and you light the wick on an engineering arms race that should also lead to bigger brakes, an engine with more exotic pistons and a tougher bottom end, a stronger gearbox and clutch, a beefier diff, sturdier chassis, fatter rims and rubber... the list goes on, and on. Until you end up with something very much like the spec, weight, and price of the 370Z.

That's not to say this car isn't a fun drive. It is. Just don't expect the quick reflexes of an MX-5 or 86/BRZ.

Despite light-weighting tricks like an aluminium bonnet and all-alloy suspension, the 370Z weighs in at a not inconsiderable 1467kg. And although its 3.7-litre V6 develops a solid 245kW/363Nm, first impressions are dominated by its hollow mid-range.

Much as I love the free-revving nature of a naturally aspirated engine, there's no denying a modern turbo typically delivers lots of torque low down, with peak power also available within a useful rev range.

All the action here is at the top end, with maximum torque arriving way up at 5200rpm, and peak power taking over at a nose-bleed 7000rpm (the rev ceiling is 7500rpm). Not exactly an easily accessible sweet spot.

The gearbox is a sweet reminder of what a pleasure it is swap ratios in a top-notch close-ratio manual.

But there's still so much to like about this evergreen Zed. Its classic front engine/rear-drive layout results in a 53/47 front to rear weight distribution and the car feels balanced and beautifully predictable.

Suspension is double wishbone front, multi-link rear, and ride comfort, even over choppy bitumen surfaces is surprisingly good. On the flip-side, rumble coming up from the Bridgestone Potenza RE050A rubber (245/40 f / 275/35 r) is always noticeable, and often intrusive.

The steering is supported by old-school hydraulic power assist and while connection with the front wheels is impressive, overall feel is light. Hello 'Merica.

The gearbox is a sweet reminder of what a pleasure it is swap ratios in a top-notch close-ratio manual, and hats off to Exedy for producing a wonderfully progressive clutch. Personal preference was to turn off the standard 'SynchroRev Match' function, because I like having a go at the ol' heel 'n' toe tap dance myself.

Brakes are ventilated front and rear with almost equal size rotors (355mm f / 350mm r) clamped by four-piston calipers up front and two piston units at the rear. They are reassuringly powerful and consistent.

Age has not wearied the 370Z's ergonomics. Although the lack of a digital speedo and no reach adjustment for the steering column is annoying, the sports seats are snug and comfortable, the moderately chunky wheel feels great, and all the major controls are simple to use. Who needs slick screens and 'piano black' finishes?

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.

Nissan offers a three year/100,000km warranty, which isn't exactly ground-breaking in the age of Kia's seven year/unlimited km commitment.

But it does include 24-hour roadside assistance for three years, and Nissan's 'myNissan Service Certainty' capped-price servicing program applies for up to six years/120,000km.

The scheduled maintenance interval is six months/10,000km, with charges ranging from a low of $283, to a high of $831 (100,000km), averaging out to roughly $428 per service.

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.